Wayne joins a health club and keeps track of his total club expenses at ​the end of each month of his membership, as shown in the table. The ​total expenses consist of a one-time registration fee and a cost per ​month. ​Month, x
Cumulative Health Club Expenses, y
​ 11 ​\$ 85
​ 22 ​\$ 110
​ 33 ​\$ 135
​ 44 ​\$ 160
​ 55 ​\$ 185

What is the one-time registration fee?

Step-by-step explanation:

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you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

what are you trying find out?

step-by-step explanation: