// Marvyn De La Torre CS1A Chapter 3, P.143, #2
/*************************************************************
// Calculate Stadium Ticket Income
//
// This program displays the total income generated from ticket
// sales for the three seating classes at a stadium.
//
// Input:
// Number of Class A tickets sold
// Number of Class B tickets sold
// Number of Class C tickets sold
//
// Output:
// Total income from ticket sales
*************************************************************/
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
double classA;
double classB;
double classC;
double total;
cin >> classA;
cin >> classB;
cin >> classC;
total = (classA * 15) + (classB * 12) + (classC * 9);
cout << fixed << showpoint << setprecision(2);
cout << "The total income is $" << total;
return 0;
}
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