Question

a room is 18 feet long and 14 feet wide with walls 10 feet high. If one can of paint covers 450 square feet, how many cans of paint would be needed in order to paint the four walls?
[2(18x10) + 2(14x10)]ft^2/450 ft^2/can
= 1.42.
You'd better buy two cans. You will have some left over.

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