Use the line graph shown. The graph shows annual cigarette consumption (in billions) for the United States for the years 1900 to 2010. Cigarette Consumption in the United States 700 600 500 400 300-...

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Extracted text: Use the line graph shown. The graph shows annual cigarette consumption (in billions) for the United States for the years 1900 to 2010. Cigarette Consumption in the United States 700 600 500 400 300- 200- 100 1900 1920 1940 1960 Year 1980 2000 2010 Estimate the number of cigarettes smoked in 1990. The number of oigarettes smoked in 1990 was approximately billion. Billions of cigarettes