SOLUTION: Suppose that a gallon of wall paint costs $16 and covers 350 square feet. Three rooms of the house measure 9ft by 12 ft, 14ft by 16ft, and 12ft by 14 ft. The ceiling is 9ft high.

Question 4666: Suppose that a gallon of wall paint costs $16 and covers 350 square feet. Three rooms of the house measure 9ft by 12 ft, 14ft by 16ft, and 12ft by 14 ft. The ceiling is 9ft high.
Suppose you wish to paint the walls of the 9ft by 12ft room green, the walls of the 14ft by 16 ft room off-white and the walls of the 12ft by 14ft room blue. How much green, off white and blue paint do you need? Calculate the cost of painting the three rooms.
Answer by Abbey(339) (Show Source): You can put this solution on YOUR website!
Area is found by multiplying height by width:
Two walls are 9' high x 9' wide and two walls are 9'high x 12' wide
(2*9*9) + (2*9*12) = 162+216 = 378 square feet (2 gallons are needed) = $32
Room 2
Same process
Walls: (2*9*14)+(2*9*16) = 540 sq. feet (2 gallons are needed) = $32
Room 3
walls: (2*9*12)+(2*9*14) = 468 square feet (2 gallons are needed) = $32
Total for house = $32*3=$96

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