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Mathematics, 07.12.2020 18:00 ashleybashaam6821

Marissa wants to join a video game club. She will be charged a flat fee to join the club and will also pay for each game she purchases. The total amount she can expect to pay, in dollars, can be estimated using the function f ( x ) = 20 x + 90 , where x is the number of games purchased. What is the inverse of this function?

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