Answer:

Step-by-step explanation:

Answer:
Volume = 10562.96 cu ft
10.56 hr. to drain all the water
Step-by-step explanation:
V = 1/3Bh B = area of the base h = height
The base is a circle, so 
= 10562.96 cu ft
10562.96/1000 = 10.56 hr.
Answer:
23
Step-by-step explanation:
If it's lower than 5 keep it and go
Above 5 climb one number higher
At the end of 4 years you will pay a extra 240 dollars