The north wall of a barn is a rectangle 25 feet high and 60 feet long. There are five windows in the wall, each 8 by 10 feet. If a gallon of paint will cover 275 ft2, how many gallons of paint must the painter buy to paint the wall?
4 gallons of paint
Area to paint = [25 * 60] - 5[8 *10] = 1100 sq ft
Gals needed = 1100/ 275 = 4
+5 
