Mathematics, 05.04.2020 18:15 Fatimaneedhelp
In 1990, the cost of U. S. stamp was 25 cents. In 2010, the cost of U. S. stamp was 44 cents. In 20 years, what was the percent of increase in cost of stamps?
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In 1990, the cost of U. S. stamp was 25 cents. In 2010, the cost of U. S. stamp was 44 cents. In 20...
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