Answer:
1st one
Step-by-step explanation:
a = 24
a = 150
a = 66
your welcome
251.2
V=πr²h
3.14×4²×5
Answer: 512 times
196 gal/minute
divide the time by the amount of gallons
24
1234, 1243, 1324, 1342, 1432, 1423, 2134, 2143, 2314, 2341, 2413, 2431, 3214, 3241, 3124, 3142, 3412, 3421, 4321, 4312, 4231, 4213, 4132, 4123