Answer:
2.5 ft
Step-by-step explanation:
Knowing the volume is 15 ft and the base is 6 ft, we can use the formula V=bh. We will inverse this operation because we don't have the height so 15/6 = 2.5
We can also check our answer by doing 6 x 2.5. You get 15 which proves that it is correct.
Hope this helped!