Six students will make their final reports on the last day of class. In how many orders can the reports be scheduled for presentation?

(2W + 2)(2W + 5)W = 4W³ + 14W² +10W (that first exponent is a 3, doesn't look very clear on my screen)

Step-by-step explanation:

Let W be width, L be length, and H be height.

L = 2W + 2

H = L + 3                     but L = 2W +2, so substitute.

H = (2W +2) + 3

H = 2W + 5

and of course W = W

The volume is L x H x  W = (2W + 2)(2W + 5)W

= (4W² + 14W +10)W

= 4W³ + 14W² +10W (that first exponent is a 3, doesn't look very clear on my screen)