Answer:
A is correct.
Step-by-step explanation:
Here, the x would represent the gallons per minute. The minutes are unknown, so it's just a variable. It can't be B either, because the addition sign would mean that the pool is being filled instead of drained.
It's a computation. It would be 8!/3!(8-3)! If my memory serves me correctly.
Answer:
59%
Step-by-step explanation:
