4 questions Chapter 4







     





 





 

 



           

      



  

   

        

                 

              

    



                  



     

       

   

   



   

  

   

  

   

   

 



 

                          

   

 

         

 

       

     



 



  



 

   

      

  

    

 

 

   

     

                    

  

             

     



     

    



   

   

     

     

 

     

     

 

   

      

  

 

  

   

         



     

     



     

     

    

     

     

    

   

      

      





   

   

      

 



   



       



  

      

   





   





 









 

 





   

 

           

   



   



  

   



      

       

     

    

   

  

  

 

   

   

   

   

   

   

   

   

   

   

   

    

   

   

   



    

   





     



   







  



 





   

   



      

      

           

          

   

 



               

 

 

       

     



      

    

    

    

   

  





      

   

     







      

    

    

  

     





      

      

     



 



 





    



     

   

  

   

  

   

   

  

    

    

 

   

            

                   



    

   

   

  

  

    

  

   

   







 





 







    

          

 

    

   

       

 







 









  



     

 



   

    

 









    

       

          

      

 



    

















   

    

        

          

     

     

 

  

  

 

    



 











   











 

   



    

  

  

  





    

            

   



  

         

           











 



   

        

                     

     

     



   



  

  

 







 

 









   



   



  

  

 





  

     

          

                  



       

   

   

 







  





   

         

    

  

  

 

    

  

     





    

  

 



  







 









   



  

    

        

 

                  



    

      

  

   

  

  









 









 



  



   

    

      

       

          

       

   

   

   





  

  





 



 





   



  

     

         

                        

   





  

 









 

 









   

  

     



    

    

  

  

  

  



  

  

  





 



 







   





   

          

        

   

     

 

 



 



 











 



 



  





 











 

 

   

 

  



   



       

 

  

 

  

   

   

        

  

        

      

  

   

       

      

   

 

    

   

     

  

      

       



     

    

   

   

    

     

    



        



   



    



   

   

               

 

  

  

     

     

     

  

  

  

  

  

 



 



  



  

  

  

  

  

 

   

     

       

    

   

        

      

     

     



 



  



   

 



    

 



   

                      

       

  



     

 

 

  





 

 







 



 



  

 

 

 









    





 









     

 



   

        

 

  

  

 

              

 

  

         

       

        

  

       

 

       

  

        

  

  

















      

   

 

         

       

          

  

    



    

 

         

  

     

 

  

 

  

   

  

       

      

   

    

    

              

          

   





 

   

 

 

   

       

       



            

   

 

 

   

  

     

  





  

   

 

     

 



   



   

   

 

   

   

   



       

     

 

      

  

   

  

  

   



  



    

 



   

   

   

    

                 



               



 







 

 



  



 

 



 



 





   



       

  



    

               

  

  

  





 





  



   

 



      

       

  

                      



     

     

 

  

    





  



 



 

   

   

  

  



 

 

    

 

  

  

      

  

     



      

   

           

       

  

 

      

  

         

                  



 

   

  































































































 











   

 









          

             



                       

      

   

                  

             

             





























































































































































 



   



                       

   



 











 



 

      

    

  

   

                       

     

           

      

   

  

    





                 

   

          

      

    

 

    

 

 

      

  

          

  

  

  

               

  

   

   

   

    

 

  

      

         



             

   

                        

      

   

            

                

       

                     

      

               

              

           

  

   

   

     

   

              

 

   





 

   

   

  





  



 



 



 

    

    

  

    

  

  

     

      

      

      

  

      

      

  

               

   

             

          

         

   

 



       

  

           

           

          

         

          

 

    

    

 

    



     

     



     



 

 



         

            

     

             

    

    

   

  

      

  

       

   

  

      

   

        

     

    

 

 

 

  

 

 

 

 

 



 

 

   

    

     

    

   

   

 

       

    



 



 

 



       



 

   

    

  

  

  

     

       

           

     

        

           

             

   

   

            

  

  

    



 



 

 

   

 



  

 



   



  

   

    

  















 

   

 

 







   

 

 





 

   

















     

       

 

 

   

    

   

 

   

                                       

       

        

    

      

        

    

  

         

        

  

  

 



 







 





 







 















 

    



       

     

  

       

    



     

    

   

  

  

  

   

   

     



  

     

        

     

     



   

       

    

   

    

    







       



  

  

   

  

     

   

    

         



        

     

  

 



   

    

     

  

   



      



   



 

      

 

    

 

 



      



      



  

  





 

 





   

 

   

 





    

 

 

  

  

  



 

 

 

 



                           

   

     

      

  

   

     

    

 

      

    

  

   

            

   

   

  

  



 

 

 

  



      



    



    



    

 



        

            

 



      











  

 



 

  

         

     

   

             

      

 

    





     

       



 



 

  

  

   

  

 



          

     

      

     



  



     

         

      

        

         

        

  



  

    



  

 

          

                  

  

  





    









 

 



         

   

      

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