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 .
Answer
1/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
Money spent on rent =1/3 of $576= 1/3×576= $192
Money spent on food = 1/4 of 576 = 1/4×576 =$144
Money left = 576-(192+144)=
=576-336= $240
The answer is 2/3 I hope it helped