Answer:
Option A 
Step-by-step explanation:
The volume of a cone is:

The volume of a cylinder is:

Both figures have the same height h and the same radius r.
The volume of the cylinder
We want to find the volume of the cone.
Then, we find r and h:

We simplify.

Then the product of
.
We substitute this in the cone formula and get:

First of all you have to make them equal to each other. What I mean is the following
3x+20=2x+40
Then you should just solve for x
30000L is larger than 3kL
Answer:
Step-by-step explanation:
The volume of a sphere is as follows: (4/3) * (pi) * (radius cubed)
To solve this problem, we can substitute the given value for the radius and for pi.
Volume = (4/3) * (3.14) * (2.197)
Volume = 9.1981...
Opposites.
Their sum is zero so they are called opposites.