Answer:
Range!
Step-by-step explanation:
It's the range because it's subtracting largest and smallest number in the set.
The surface area of a sphere is

where r is the radius;
The circumference is

so that

using this value we can evaluate the surface area of 1 ball as:

For 100 ball you get:
Its wrong for x = 2
y = (3/4) * 2^2 = 3 (NOT 4)
Answer:
85 miles per hour
Step-by-step explanation: