Answer:
8
Step-by-step explanation:
First off, we need to recognize that the formula for the volume of a sphere is
.
Then, we can plug in our r values one at a time.
The volume for the sphere with a 6-inch radius is about 904.779.
The volume for the sphere with a 3-inch radius is about 113.097.
To find how much greater the larger sphere is, we simply create a ratio between the two numbers: 
Do the division to find that the volume of the larger sphere is about 8 times the volume of the smaller sphere.
Answer:4 and 5
Step-by-step explanation:
√(20) is approximately 4.5 so it is between 4 and 5
A non-negative root of a number is called Square Root
Think of it like this
3.99 x 3=11.97
Divide by 4
Should give u 2.99
^^^there is your answer