a. Draw a flowchart or write pseudocode to represent the logic of a program that allows the user to enter values for the width and length of a wall in feet. The program outputs the area of the wall in square feet.

b. Modify the program that computes wall area to allow the user to enter the price of a gallon of paint. Assume that a gallon of paint covers 350 square feet of a wall. The program outputs the number of gallons needed and the cost of the job.

c. Modify the program that computes paint cost to allow the user to enter the number of doorways that do not have to be painted. Assume that each doorway is 14 square feet. Output the number of gallons needed and the cost of the job.