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12 February, 13:59

A department store is having a storewide 20% discount sale. The sale price Of an item that has a regular price of Ris S = R - 0.2R. Write the inverse function. What is the regular price for an item that is on sale for $38.40?

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  1. 12 February, 15:17
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    R=48

    Step-by-step explanation:

    S=R (1-0.2) R = 38.40/.8

    S=R (.8) R = 48

    R=5/.8
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