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20 November, 00:33

A first-class postage stamp was $0.02 in 1885. The same first-class postage stamp in 2006 was 39¢. What is the percent of increase in the cost of a first-class postage stamp?

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  1. 20 November, 00:53
    0
    18500%

    Step-by-step explanation:

    (39-2) / 2

    37/2

    18.5

    18500%
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