Answer:
A 36

Step-by-step explanation:
The formula for the volume of a sphere is
. Because we are given the radius, 3 (centimeters), of the sphere, all we would need to do is plug 3 in for
, and solve.

Using the order of operations (Parentheses, Exponents), we can solve for
, which is 27 (think 3*3*3).
Then, we simply Multiply
, to get
.
With our unit, centimeters cubed (
), our sphere's volume is 36
.