24x would be the correct answer
The volume of a cylinder is given by

where
is the base area, and
is the height.
We are already given the height, which is 10.
We can deduce the base area since we are given a diameter: the radius is half the diameter, so it's 8, and the area of a circle is given by

So, the volume is

Answer: the answer is A
Step-by-step explanation: the commas are pausing the sentences for no reason the sentence is fine by itself
The answer would be 19.25 ft because 1cm x 2.5 = 2.5 ft so you will have to do the same to 7.7 cm : 7.7cm x 2.5 = 19.25 ft.