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Karen wants to join Buff Gym. There is a $100 initiation fee, and then a $40 monthly fee. A) Determine the equation that expresses the cost of joining this gym for x months. B) Find the inverse function of the equation for part A.

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Sorry for the bad handwriting.
Karen wants to join Buff Gym. There is a $100 initiation fee, and then a $40 monthly-example-1
User Sam Figueroa
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