Which number is relatively prime to 63?
A. 114
B. 99
C. 87
D. 25

the answer is D

Step-by-step explanation:

You can list the factors of each number starting at 63.  

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i