Using Constant Variables in C++ for Shipping Cost Calculation

[ineedhelpnow]

i don't even understand this...
Given shipWeight in pounds, compute the cost to ship a package and assign to shipCost. Shipping involves a flat fee of 75 cents, plus 25 cents per pound. Declare and use a const named COST_PER_POUND. Sample program:

#include <iostream>
using namespace std;

int main() {
   int shipWeight = 10;
   int shipCost = 0;
   const int FLAT_FEE = 75;

   <STUDENT CODE>

   cout << "Shipping cost: " << shipCost << endl;
  
   return 0;
}

here's a little "review" about constant variables:

A good practice is to minimize the use of literal numbers in code. One reason is to improve code readability. newPrice = origPrice - 5 is less clear than newPrice = origPrice - priceDiscount. When a variable represents a literal, the variable's value should not be changed in the code. If the programmer precedes the variable definition with the keyword const, then the compiler will report an error if a later statement tries to change that variable's value. An initialized variable whose value cannot change is called a constant variable. A common convention, or good practice, is to name constant variables using upper case letters with words separated by underscores, to make constant variables clearly visible in code.

Spoiler

thanks EM for telling me bout the

 function. looks way better.[/SPOILER]

i tried this
[CODE]const int COST_PER_POUND = 25;
shipCost = FLAT_FEE+COST_PER_POUND;

one test passed but the other two didnt

 

[ineedhelpnow]

oh ok i see. its supposed to be

const int COST_PER_POUND = 25;
shipCost = FLAT_FEE+(COST_PER_POUND * shipWeight);