It's C# code for an application that computes the total due for purchases. Any help would be great so I can finish this off tonight.

In the final program it must ask for the price of the item. "What is the amount of the item?"

Once the price is entered it will then ask "Do you want to enter another item? Y or N

Then ask the price of the item again. All while keeping track of the price of each item for the final purchase price. 

 

using System;
using static System.Console;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Chapter6Homework1
{
    class Ch6Program1
    {
        static void Main(string[] args)
        {
            int items, cost, tax, total;
            int shipping = 0;
            bool quitProgram = false;

            //Display Info and Instructions
            WriteLine("nThis application computed the total due for your purchases.");
            WriteLine("nIt will allow you to enter any number of purchase amounts.");
            WriteLine("When you are finished entering purchases, it displays the total due including sales tax and shipping costs.");

            //Determine to quit or keep entering prices
            while (quitProgram == false)

                if (quitProgram == false)
                {
                    WriteLine("Do you want to enter another item? Y   or N  :");
                    break;
                }

                else if (quitProgram == true)
                {
                    WriteLine();
                    WriteLine("What is the amount of the item? ");
                    cost = Double.Parse(ReadLine());

            }

            //Calculates shipping cost
            while (items)
            {
                if (items <= 3)
                    shipping = 3.50;
                else if (items > 3 && <= 6)
                    shipping = 5.00;
                else if (items > 6 && <= 10)
                    shipping = 7.00;
                else if (items > 10 && <= 15)
                    shipping = 9.00;
                else (items > 15)
                        shipping = 10.00;
                return shipping;

            }

            //Calculates tax
            tax = cost * (7.75 / 100.0);
            return tax;

            //Cacluates total
            total = cost + shipping + tax;
            return total;

            //Displays results
            WriteLine("--------------------------------------");
            WriteLine("nItems total cost: $"{0:c2} + cost);
            WriteLine("nNumber of items:"{0} + items);
            WriteLine("nSales Tax:$ " { 0:c2} + tax);
            WriteLine("nShipping: $ "{ 0:c2} + shipping);
            WriteLine("--------------------------------------");
            WriteLine("nnGrand Total: $ "{ 0:c2} cost+tax+total);
        }
    }
}