#include <iostream>int main() { //Customise how cout returns numbers. std::cout.setf(std::ios::fixed); //Make cout use fixed point notation. std::cout.setf(std::ios::showpoint); //Decimals must always be displayed. std::cout.precision(2); //Show two numbers after the decimal point. //Declare the variables to be used. unsigned short quantity; float price, taxRate; //Asign values to the variables. quantity = 3; price = 19.95; taxRate = 0.05; //Print some introductory text. std::cout << "-Widget cost calculator-\n"; //Print the variables std::cout << "The cost of purchasing "<< quantity <<" widget(s) at a price" " of $"<< price <<", with tax, comes to $"; //Print the calculation. std::cout << ((quantity * price) + ((quantity * price) * taxRate)) << "\n"; //Let the user see the result, and tell them how to terminate the program. std::cout << "Please press enter, or return to close the program"; std::cin.get(); //Return 0 to let the compuer know there were no errors running the program. return 0;}