Answer:
1.6 x 10^4
Step-by-step explanation:
(8/5) x 10^9-5
1.6 x 10^4
X^(0.5)+2x+0.5 can be your answer - x^(0.5) means square root of x
The volume of sphere is
feet cubed.
Step-by-step explanation:
Given,
Surface area of sphere = 196π square feet
Surface area of sphere = 4πr²
We will find radius of sphere.

Dividing both sides by 4π

Taking square root on both sides

The radius is 7 feet.
Volume of sphere = 

The volume of sphere is
feet cubed.
Keywords: volume, surface area
Learn more about surface area at:
#LearnwithBrainly
Answer:
x
/ 3
Step-by-step explanation:
Helen runs the longest distance in 4 days.
Helen (In 4 days): 2.75 x 4 = 11
Bill (In 4 days): 10
11 (Helen) > 10 (Bill), so therefore Helen runs the longest distance in 4 days.