Answer:
See below.
Step-by-step explanation:
The figure is a cone. The formula for the volume of a cone is:

The radius is 4.8 and the height is 2.9. Substitute:

Use a calculator:

And we're done!
Answer: r = -5/18
Step-by-step explanation: You solve -3(1+6r)+12=14
-3-18r+12=14 (When distributed)
-18r+9=14
-18r=5
r=-5/18
Answer:
615079
Step-by-step explanation:
This is the answer for A
ANSWER
The three expressions are

EXPLANATION
We were given the volume in cubic units to

If we factor 2, we get,

The expression in parenthesis is a difference of two squares. But you may not recognize it at first sight.

This further gives us.
You want to use the distributive property for this one:
-7k + 21
Your answer should be the very bottom left one.
Hopefully thta helped! :)