Answer:
It should make the mean and median lower. I'm not exactly sure what the other items are, but this is the most likely answer.
Craig practiced 15 hours
b = 0
To solve make b the subject so:
4b + 6 = 2 - b + 4
5b + 6 = 6
5b = 0
5 = 0/5
= 0
I belive it would be 253 and 1/2 units.
6.5 x 6.5 = 42.25 (Area of one side)
Cube has 6 sides so 42.25 x 6 = 253.5