Mathematics, 27.02.2020 17:59, janae201831

N the United States in the 20th century, average life expectancy increased from about 47 years to about 77 years. Find the percent of increase to the nearest percent.

A. 39%

B. 64%

C. 264%

Answers: 1

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N the United States in the 20th century, average life expectancy increased from about 47 years to ab...