Question

Your task: From main, ask the customer which paint colorthey wish to purchase and how many full gallons of paint are needed. Design the program to allow the customer to make changes such as return replace or additional purchases of either color of paint. Establish an error trap to ensure that the user input is in the indicated range (lower cases and upper case). 1. Establish a function to deal with each color of paint (5 functions). 1: The function for the LighBlue paint: determine the cost of the paint based upon $20.90 per gallon. Return the total cost to main. 2: The function for the Gray paint: determine the cost of the paint based upon $22.50 per gallon. Return the total cost to main. 3: The function for the Wheat paint: determine the cost of the paint based upon $23.25 per gallon. Return the total cost to main. 4: The function for the Red paint: determine the cost of the paint based upon $21.95 per gallon. Return the total cost to main. 5: The function for the Green paint: determine the cost of the paint based upon $19.95 per gallon. Return the total cost to main. 2. Establish a function to print the store title for billing purposes (Line-1&3 starlines, Line-2 for store name.) 3. Use cout text alignment (left justified, by using cout.width(40)) 4. Establish a function that determines a total bill for the customer. This function will receive the totals from the five paint functions, will compute the final total cost, and will add HST - 13% to the order. Return this final total to main. Text alignment (left justified, by using cout.width(40)) 5. Clear screen before Print a bill for the customer (so that inputted data should disappeared from the screen). The bill is to be developed in the following order: the store name, the total cost of each paint color, the total HST, the total bill with sales tax, and the thank you message. Text alignment (left justified, by using cout.width(40)) 6. Be sure that the money amounts are printed as money amounts and setprecision(2). 7. Establish a payment function: This function is to be developed in the following order.