Question 768232
Jacqueline is painting a room, and she needs to know how much paint to buy. The room is 12 ft long by 15 ft wide by 10 ft high. A 3 ft by 6 ft door is on one of the 12 ft long walls, and a 5 ft by 3 ft window is on one of the 15 ft long walls. Each gallon of paint covers 350 ft2. 
Jacqueline plans to paint one coat on the walls only. How much paint will she need to buy?
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Total wall area = 2(12*10 + 15*10)-(3*6+3*5) = 2(270)-(33) = 507 sq.ft.
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# of gallons of paint needed = 507/350 = 1.45 gallons
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Cheers,
Stan H.
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