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%

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25 January, 06:12

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Maeve Mckenzie · Answer 1

About 64 percent so your answer is B

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%