A nonmember would have to go skating 11 times a year and a member would have to go skating 12 times a year.
They each paid $110.
I hope this is correct!
Good luck:)
Answer:

Step-by-step explanation:
6^4/6^1
6^(4-1)
=6^3
No, she cannot use a ratio of 21 to 6. You can figure this out in a few different ways. First you can simplify down the fraction 18/3, to get 6/1. 6/1 does not equal 21/6, because 21/6 equals 7/2. However, 6/1 it does equal 36/6. You could also noticed that three doubles to make six, yet 18 does not double to make 21