Question 404069
You must find the surface area of the box.  You can do this by adding up all the 6 faces of the box.
Two faces have the area 12*24=288, so 2*288=576
Two faces have the area 24*16=384, so 384*2=768
Two faces have the area 16*12=192, so 192*2=384
Add up all the faces and you get 576+768+384=1728
so you need 1728 square inches of wrapping paper
Good job :)