Answers and steps in the pic..
there are 2 options....choose what you want..
2.3 i think let me know if it works
Answer:
I think it is b
Step-by-step explanation:
it is just rotating the size is not changing
The third one, 1/3(40)ft^3, due to the fact that the volume of a cone is 1/3 that of a cylinder. This is shown from their formulas.
Cylinder

Cone
Answer:
(if you want an inequality, it's h < 12)
Step-by-step explanation: