The cross-section of a sphere is a circle . The area of a circle can be calculated by the formula A=
Where r is the radius of the circle.
Given :
Solving for r we have:

Or r= 10.
The area of a sphere is calculated by the formula :

Substituting r value we have:
SA= 
The total surface area of this sphere is 400π .
Step-by-step explanation:
Dani have to take 2 of a batch muffins
Ok so Olivia got $250 a week and 5%
250*.05 is 12.5
Olivia would $262.50 because she sold 1 thing costing $3,500
I think it's right hope this helped sorry if I'm wrong.
Answer:
Sample 2.
Step-by-step explanation: Trust