If a room is 13 feet long and 12 feet wide. The ceiling is 8 ft high. I want to paint all 4 walls. If a can of paint covers 100 sq ft, how many cans of paint will I need?
2(13 * 8) = 208 sq. ft.
2(12 * 8) = 192 sq. ft.
Take it from there.
2(12 * 8) = 192 sq. ft.
Take it from there.