Answer:
8.6 inches (Rounded: 9 inches)
Step by Step:
1). w x l = A
2). 20 x l = 172
3). 172/20
4). 8.6
Surface area of a sphere = 4πr^2
4πr^2=100π
Divide both sides by 4π
r^2=100
r=10
The radius is 10 cm.
The answer to this question is zero
8 hours = 1 day
24 hours = 3 days
187.42/24
Round it up and it will give you $7.80/hour
