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12 June, 03:53

A pair of shoes costs $30.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, where C is the total cost, p is the price, and r is the sales tax rate

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  1. 12 June, 04:08
    0
    C = p + rp

    p = 30.99

    r = 5% ... turn to decimal = 0.05

    C = 30.99 + 0.05 (30.99)

    C = 30.99 + 1.55

    C = 32.54 <==
  2. 12 June, 04:15
    0
    Well since 5% is. 05 all you have to do is plug in the numbers so C=30.99+.05X (30.99) so the answer would be 32.5395
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