#include <iostream>
#include <iomanip>

using namespace std;

double calculateBill(int income, int consultingMinutes, double hourlyRate);

int main()
{
    int income, consultingMinutes;
    double hourlyRate;

    cout << "Please enter the clients income: $" ;
    cin >> income;
    cout << "Please enter the consulting time in minutes: ";
    cin >> consultingMinutes;
    cout << "Please enter the hourly rate: $";
    cin >> hourlyRate;
    cout << fixed << showpoint << setprecision(2);
    cout << "Your total bill ammount comes to: $" << calculateBill(income, consultingMinutes, hourlyRate) << endl;
    return 0;
}

double calculateBill(int income, int consultingMinutes, double hourlyRate)
	{
    if (income <= 25000)
	{
        if (consultingMinutes <= 30)
            return 0;
        else
            return hourlyRate * 0.40 * ((consultingMinutes - 30) / 60);
    }
    else {
        if (consultingMinutes <= 20)
            return 0;

        else
            return hourlyRate * 0.70 * ((consultingMinutes - 20) / 60);

        }
}