Population projections. Population projections suggest that by 2050, the number of people 60 years and older in the United States will be about 107 million. In 1950, the number of people 60 years and older in the United States was 30 million. Let x represent the number (in millions) of people in the United States who are 60 years and older. Use inequalities to describe this population range from 1950 to 2050 and graph the corresponding interval on a number line. Source: U.S. Census Bureau
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