In 1985, 39% of people age 12 and over reported u

In 1985, 39% of people age 12 and over reported using cigarettes. The percent of people using cigarettes has decreased about 1% per year since 1985. A) Write and equation that represents how many people use cigarettes in X years. B) If the percent of people using cigarettes continues to decrease at the same rate, what percent of people would you predict to be using cigarettes in the year 2015? C) If the trend continues, when would you predict there to be no people in the US using cigarettes? How accurate is your prediction?
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Answers:

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