The bar graph shows the total amount Americans paid in federal taxes, in trillions of dollars, and the U.S. population, in millions, from 2012 through 2015. Exercises 115–116 are based on the numbers displayed by the graph.

a. In 2015, the United States government collected $3.18 trillion in taxes. Express this number in scientific notation.

b. In 2015, the population of the United States was approximately 320 million. Express this number in scientific notation.

c. Use your scientific notation answers from parts (a) and (b) to answer this question: If the total 2015 tax collections were evenly divided among all Americans, how much would each citizen pay? Express the answer in decimal notation, rounded to the nearest dollar.

Transcribed Image Text:

Federal Taxes Collected (trillions of dollars) $3.50 $3.00 $2.50 $2.00 $1.50 $1.00 $0.50 Federal Taxes and the United States Population Federal Taxes Collected Population 3.18 2.45 314 2012 2.78 . . 316 2013 3.02 Year 319 2014 320 2015 400 350 300 250 200 150 100 Population (millions)