The correct question is
<span>Use the formula SA=6s2 , where SA is the surface area and s is the edge length of the cube, to solve this problem. Gavan must paint a cube-shaped box. The edge length of the box is 2 1/2 feet. What is the surface area of the box?
we know that
[surface area]=6*s</span>²
s is the edge length of the cube
in this problem
s=2 1/2 ft------> (2*2+1)/2-----> 5/2 ft
[surface area]=6*(5/2)²----> 6*(25/4)----> 75/2 ft²-----> 37 1/2 ft²
the answer is
37 1/2 ft²
D. 64, because 8x16 is 128, and that divided by 2 is 64. ;)
B is the answer to the question! Take away the negative sign and just subtract normally then add it back