The rate of expenditures on public elementary and secondary schools, in billions of dollars per year, in a region of the US can be modeled by the function s = 6.81e0.082t , where t is the number of years after January 1, 1980. What are the total expenditures from January 1, 1980 to January 1, 2010?

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A: Explanation of the answer is as follows

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A: Topic = Integration

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