Calculate the surface area in square feet of a box that measures 13 inches in length, 12 inches in width, and 11 inches in height. the value of your answer should be square feet

A = 2 * (length * width) + 2 * (length * height) + 2 * (width * height) =

= 2 * (13 * 12) + 2 * (13 * 11) + 2 * (12 * 11) =

= 2 * 156 + 2 * 143 + 2 * 132 = 312 + 286 + 264 = 862 in²

1 ft = 12 in ⇒ 1 ft² = 144 in²

⇒ 862 in² = (862 : 144) ft² = 5.986 ft²