here is the question and the code whats wrong i keep getting errors

The payroll manager at Gerston Blankets wants a program that calculates and displays the gross pay for

each of the companys employees. It also should calculate and display the total gross pay. The payroll manager will enter the number of hours the employee worked and his or her pay rate. Employees

working more than 40 hours should receive time and one-half for the hours over 40. Use a value- returning function to determine an employees gross pay. Use a different value-returning function to

accumulate the total gross pay. The program should display the total gross pay only after the payroll manager has finished entering the data for all the employees. Use a sentinel value to end the program.

C++ code:

#include

#include

using namespace std;

// prototypes

double getGrossPay(int hours, double payRate, double &grossPay);

double calcTotalGross(double grossPay, double totalGross);

int main()

{

// delare

int hours = 0;

double payRate = 0;

double grossPay = 0;

double totalGrossPay = 0;

cout << "Hours worked: ";

cin >> hours;

if (hours != -1)

{

cout << "Pay rate:";

cin >> hours;

}

while (hours != -1)

{

getGrossPay(hours, payRate, grossPay);

totalGrossPay = calcTotalGross(grossPay, totalGrossPay);

cout << "Hours worked";

cin >> hours;

if (hours != -1)

{

cout << "Payrate";

cin >> payRate;

}

}//endwhile

//display the total gross pay

cout << fixed << setprecision(2);

cout << "Total gross pay is $" << totalGrossPay <<

endl;

system("pause");

return 0;

// function def

double getGrossPay(int hours, double payRate, double &grossPay);

{

//declare variables

int overtimeHours = 0;

if (hours > 40)

{

overtimeHours = hours - 40;

grossPay = (40 * payRate) + (overtimeHours * 1.5 * payRate);

}

else

grossPay = hours * payRate;

//endif

} //end of getGrossPay

double calcTotalGross(double grossPay, double totalGrossPay);

{

//declare variables

double totalGross = 0.0;

totalGross = totalGrossPay + grossPay;

}

}