Answer:
Volume = 14,836.5 cubic inches
Step-by-step explanation:
Cylinder not shown but information given. So we will calculate the volume.
Volume of Cylinder is given by the formula:

Where
V is the volume
r is the radius (HALF of DIAMETER)
h is the height
It is given in the problem,
Height is 21
h = 21
and
half the diamter (aka radius) is 15
r = 15
Substituting into formula and using 3.14 for
, we get the volume:

Hence, the volume is:
Volume = 14,836.5 cubic inches