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12 December, 16:36

The price of a set of headphones that regularly sells for $99 increases by 30%

a. What is the sum 100% + 30%? how can you use that sum to write an expression for the new price?

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  1. 12 December, 18:36
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    Anwser is 100% + 30% = 130%

    or $99 + $29.7 = $128.7

    An expression:

    99 (0.99*p) = $

    p = percent %
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