In 1970, 55.2% of Americans ages 25 and older had completed four years of high school or

Chapter 11, Problem 62

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In 1970, 55.2% of Americans ages 25 and older had completed four years of high school or more. On average, this percentage has increased by approximately 0.86 each year. a. Write a formula for the nth term of the arithmetic sequence that models the percentage of Americans ages 25 and older who had or will have completed four years of high school or more n years after 1969.b. Use the model from part (a) to project the percentage ofAmericans ages 25 and older who will have completedfour years of high school or more by 2019.

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