10 points
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How many boxes of joint compound would be needed for a 16' high by 48' long wall that has been covered with sheetrock, if a half of a box (0.5 boxes)
of joint compound can finish 100 ft2 of sheetrock? Round your answer up to a full box.
OA.3 boxes
O B.4 boxes
OC. 5 boxes
O D. 6 boxes
Fig: 1