q1: How much money will be in a savings account at the end of 10years from deposits of 1000$ per...

q1: How much money will be in a savings account at the end of 10years from deposits of 1000$ per month, if the account earns interest at a rate of 10% per year compounded semiannually?

q2: A present sum of 50000$ at an interest rate of 12 % per year compounded quarterly is equivalent to how much money 8 years ago? 

q3: if a project cost per machine is 22,000$ per year for years 1 and 2 and then it increases by 8% per year through year 10 , at an interest rate of 10% per year 

a) total present worth at year 0 .

b) total future worth at year 10. 

q4: Use the table below and the present worth method to select the best alternative at 12% per year,

                                                                                                         A                                    B                                 C 

First cost ,$millions                                                                        -200                            -350                              -475 

Annual cost,$millions                                                                    -450                           -275                              -400 

Salvage value,$millions                                                                75                                50                                  90   

Estimated life,years                                                                          20                                20                                   20     

Any help is appreciated