C++ Homework to be done

I want someone to do this assignment.. it has two questions.  I have almost done the second one. it needs a little change. 

the questions are attached..

my incomplete program ( second question ):

#include <iostream>
 
using namespace std;

 
 
 
// fuction prototypes

 
 
void askForInputs(float *, float *, float *, float *);

void calcNumPaintCans(float, float, float, float *);

void printInfo(float, float, float, float);

int main()
 
 

{

 
float hight; float length; float width; float numPaintCans; floatnumSqrFtPerCan;

float *hightPtr = &hight, *lengthPtr = &length, *widthPtr = &width;float *numSqrFtPerCanPtr = &numSqrFtPerCan;
 
 

askForInputs(hightPtr, lengthPtr, widthPtr, numSqrFtPerCanPtr);

 
cout << "To paint the walls and ceiling of a room that has ";

cout << "a length of " << hight << " ft, ";

cout << "width of " << length << " ft, ";

cout << "height of " << width << " ft, ";

cout << "where each can of paint covers" << numSqrFtPerCan << " sft";

cout << "\n"; system("pause");
 
 

}

 
void askForInputs(float *hightP, float *lengthP, float *widthP, float*numSqrFtPerCanP)
 
 

{

 
cout << "Please enter hight: ";

cin >> *hightP;

cout << "Please enter length: ";

cin >> *lengthP;

cout << "Please enter width: ";

cin >> *widthP;

cout << "Please enter the number of square feet a can of paint: ";

cin >> *numSqrFtPerCanP;
 
 



}

 
void calcNumPaintCans(float hight, float length, float width, float*numSqrFtPerCan)
 
 

{

}

 
void printInfo(float hight, float length, float width, floatnumPaintCans)
 
 

{

}