how many square inches are in 60 square feet?\no 5 square inches\no 72 square inches\no 720 square inches\no…

Explanation:

Step1: Know the conversion factor

1 foot = 12 inches, so 1 square - foot = 12×12 = 144 square inches.

Step2: Convert 60 square - feet to square - inches

Multiply the number of square - feet by the conversion factor. Let (x) be the number of square inches in 60 square feet. Then (x = 60\times144). (x=60\times144 = 8640) square inches.

Answer:

D. 8,640 square inches