Answer: C
Step-by-step explanation: As they are interested in the amount of time a client exercises in a week, the population would be all the clients that use the fitness center for a given week.
Clients that do not go on this week are not part of the population. The amount of time is what they want to know, so it cannot be the population.
Circumference is equal to pi•d soo...
c = pi•12
= 37.699
Therefore the circumference is approximately 37.7 inches.
I cant help you on this if there is no coefficients.
To solve this, set up a proportion, crossmultiply, and solve for x.
Let x = the unknown amount of cases in 60 minutes.

44x = 50(60)
44x = 3000
Divide both sides by 44 to isolate variable x
x = 3000 / 44
x ≈ 68.1818 (the 18s repeat forever)
Rounding to the closest case and assuming the rate stays constant, you would get
approximately 68 cases in 60 minutes. If you need not round to the nearest case, you would get approximately 68.18 cases in 60 minutes.