Answer:
Should be 11
Inches :)
Step-by-step explanation:
Volume is the length × width × height, or the area × height. We are given the length and width of the box, so we can find the area pretty easily, by multiplying 18 and 13.5 to get 243 inches.
Now we have:
243in × height = 2,855.25
Then all we have to do is divide the volume (2,855.25) by the area (243) to find the missing height.
= 11.75, or 11
inches
Hope this helps!