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Mathematics, 04.07.2019 20:00 callieroberts1699
Afirst-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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Afirst-class postage stamp was $0.02 in 1885. the same first-class postage stamp in 2006 was 39¢. wh...
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