In the United States, the annual consumption of
Chapter 6, Problem Cumulative Review(choose chapter or problem)
In the United States, the annual consumption of cigarettesis declining. The consumption c in billions of cigarettesper year since the year 2000 can be approximated by theformula c = -9.4t + 431 where t is the number of yearsafter 2000. Use this formula to predict the years that theconsumption of cigarettes will be less than 200 billionper year.
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