C programming windows console applicationSolutioninclude inc
C++ programming windows console application
Solution
#include<iostream>
 #include<string.h>
 #include<cmath>
 #include<conio.h>
 using namespace std;
 // fucntion prototype
 int taxCalc(double , double);
int main(){
    // declare variables
    double sale=0.0; // storage for sale amount
    double tax = 0.0; // storage for tax returned from function
    double total =0.0; // storage for output
    double rate=0.0; //storage for tax rate
   
    // ask user for sale amount
    cout<<\"Enter the amount of the sale: \";
    cin>>sale;
    // ask user for tax rate as a decimal
    cout<<\"Enter the tax rate as a decimal: \";
    cin>>rate;
    // call the tax calculation function
    tax = taxCalc(sale,rate); // function call here
    // calculate the total bill
    total = sale+tax;
   
    // print result
    cout<<\"Amount = \"<<sale<<endl;
    cout<<\"Tax Rate = \"<<rate<<endl;
    cout<<\"Tax = \"<<tax<<endl;
    cout<<\"Total = \"<<total<<endl;
    getch();
    return 0;
   
 } // end of main function
// function to calculate tax goes here
int taxCalc(double sale, double rate){
    double taxValue=(sale*rate)/100;
    return taxValue; // returning tax here
 }
********************* output*****************
Enter the amount of the sale: 200
 Enter the tax rate as a decimal: 20
 Amount = 200
 Tax Rate = 20
 Tax = 40
 Total = 240
********************************

