Answer:
Option a)
Step-by-step explanation:
The given formula seems to represent the volume of right circular cone. The correct formula is:

We have to rearrange the formula for h. This means we have to move h on one side of the formula and all the other variables and constants on the other side of the equation. This can be done as shown below:

Answer:
I think it is C but can't be sure because B isn't clear.
Step-by-step explanation:
I'm pretty sure that it's b. That's assuming that you find the negative of b^2 and not the square of negative b.
Create circle B with radius AB