The answer is D. 2^6.
Because you re basically doing:
2*2*2*2*2*2
And if you multiply all of it, it will equal 64.
Hope this helps!
The question is basically asking you to calculate the new volume of the box that is 12x 7.5 x 2.5inches and to see if it has a larger volume than 162.5 sqin.
If you calculate the volume you should get 225 square inches.