Answer:
Step-by-step explanation:
The volume of a sphere is

We are told our volume is 500pi/3, so we fill that in and solve for r:

Start by multiplying both sides by 3 over 4 pi:

Simplifying gives us

Take the cubed root of both sides to get that
r = 5
The area of a triangle is A = (b*h)/2:
(5 * 8)/2 = 20
Kalil bought 1 pound and 1/4. ( 1 1/4) It means: 1 pound and a quarter pound.