47. The side lengths of the flat, trapezoidal ceiling of a bedroom are given in the figure below. Marie will
paint the entire ceiling with 1 coat of paint, using paint
that has a price of $8 per quart and is sold only by the
full quart. Each quart of paint covers an area of
90 square feet with 1 coat of paint. What is the total
price of the paint that Marie needs to buy?
12 feet
20 feet
16 feet
A. $8
B. $16
C. $24
D) $32
E. $40
24 feet