I need help with this question, thank you. EXPLAIN.

The formula for the volume of a cylinder is V=πr^2h. Which is volume equals pie * radius squared * height. pie = 3.14. radius is diameter/2, 3.5 in this case, then squared which is 3.5 * 3.5. And the height is 12. You take 3.14, 3.5^2, and 12 then multiply each term. So your substituted equation would be V=3.14(3.5^2)12.

This is how it would go:

V=3.14(3.5^2)12.
3.5^2 = 12.25.
- just squared 3.5, that equals 12.25

V=3.14(12.25)12
3.14 * 12.25 = 38.465
- pie times 12.25 equals 38.465

V=38.465(12)
38.465 * 12 = 461.58
- 38.465 * 12 = 461.58

V=461.58
- Your answer is 461.58 centimeters!!

if you didn’t know,
^ is what you use for exponents
* is what you use for multiplying