Answer: The answer is 972.
Step-by-step explanation: The formula for the volume if a cylinder is πr2h and the radius is 9 and to the second power is 81. So then the radius multiplied by the height (which is 12) is 972 which is the answer.
we know that
a)
gallon is equal to
quarter of gallon
so
by proportion
gallons is equal to
quarter of gallon
b)
liter is equal to
quarter of gallon
by proportion
quarter of gallon is equal to
liters
therefore
the answer is the option

Answer:
-9
Alternative form:
-
----------------------------------------------------
Steps:
1- Cross out the common factor
2- Calculate the sum or difference
3- Calculate the absolute value
4- Calculate the power
5- Calculate the sum or difference