Answer:
C. y=36(1.2)t
Explanation:
The number of members in the Club in t years after 2001 is given by an equation in the following format:

In which y(0) is the number of members in 2001 and r is the growth rate, as a decimal.
The number of members in the Triathlon Club was 36 in 2001 and has increased by 20% each year.
This means that

So



The correct answer is C.