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?
1 answer:
Answer:
8
Step-by-step explanation:
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Step-by-step explanation:
15.50 x 35 = 542.5
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56.1
Step-by-step explanation:
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56.1
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