The art club at has been asked to paint a mural on all four walls of the cafeteria. They need a neutral base color to be painted as the background first. They will NOT be painting the ceiling or the floor.

The cafeteria floor is a rectangle and the walls are 18 feet high.

The art club can get one gallon of paint for $17.50, and that gallon will cover 400 square feet of wall.

How much will it cost to cover the walls with base color.

*Hints: Remember, you can't buy a fraction of a gallon. Also, even though there are windows and doors you will figure the paint amount without subtracting for those.

*This is one of those SHOW ALL YOUR WORK and EXPLAIN how you got your answer.