The North Wall of a Barn Is a Rectangle 60

Multiple Choice

The north wall of a barn is a rectangle 60 feet high and 55 feet long. There are five windows in the wall, each 4 by 4 feet. If a gallon of paint will cover 400 square feet, how many gallons of paint must the painter buy to paint the wall?

A) 9
B) 8
C) 10
D) 11
E) none of these