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21 September, 17:57

Rae earns $60 for playing music on Saturday nights at the local coffee house. She makes an average of $5.25 in tips per hour. Write the function of Rae's earnings, and solve for how much she would make after 4 hours.

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  1. 21 September, 18:05
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    F (x) = 5.25x + 60

    after 4 hrs ...

    f (4) = 5.25 (4) + 60

    f (4) = 21 + 60

    f (4) = 81 ... Rae would make $81 after 4 hrs
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