Which slope below is perpendicular to the slope of this line y=2x-1/2 -1/2
-1/3
2
3

Iimagine the answer is b.

Volume is length times width times height so
20 times 8 times 30 which is 4,800
surface area is ph (p is perimeter of base), h is height.
so perimeter would be length+length+width+width so 20+20+8+8 which is 56. so multiply 56 times 30 which is 1680. hope this !