a^2 + b^2 = c^2
9^2 + 7^2 = get the answer then find the square root of it
Answer:

Step-by-step explanation:
The formula of a surface area of a sphere:

R - radius
We have

Substitute and solve for R:
<em>divide both sides by π</em>
<em>divide both sides by 4</em>

The formula of a volume of a sphere:

Substitute:

22.5% written as a fraction in simplest form is 9/40 . Hope i helped.
Answer:
29
Step-by-step explanation: