Answer:
I think the answer is D
Step-by-step explanation:
1- 60
2-80
3-336a
4-1584x
5-1673b
6-61
7-180
8-216x
9-420
10-1402b
11-784a
12-1818
13-4547y
14-5224
15-6382z
72
The Answer is C
It's C for Apex
8 quaters 3 nickels
the answer is x power 6/y power 3