The volume of a cone:

r - the radius
h - the height

The answer is B. 120π in³.
Answer:
28.26658805 (I included every digit in case your teacher needs you to round)
Step-by-step explanation:
In order to find x, we need to isolate x by subtracting 15^2 and taking the square root of both sides.
Thus, we have:

Answer:
40 percent
Step-by-step explanation:
60 - 20 = 40
Reasoning: The amount of seniors that attended was 20 percent, so 60 (total students) percent minus 20 percent is equal to 40 percent.
Hope this helps!
1/3m - 1 - 1/2n
= 1/3( 21) - 1 - 1/2 (12)
= 7 - 1 - 6
= 6 - 6
= 0