Problem

The bar graph shows the total amount Americans paid in federal taxes, in trillions of doll...

The bar graph shows the total amount Americans paid in federal taxes, in trillions of dollars, and the U.S. population, in millions, from 2007 through 2010. Exercise are based on the numbers displayed by the graph.

Sources: Internal Revenue Service and U.S. Census Bureau

a. In 2009, the United States government collected $2.20 trillion in taxes. Express this number in scientific notation.

b.In 2009, the population of the United States was approximately 308 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 2009 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.

In the dramatic arts, ours is the era of the movies. As individuals and as a nation, we’ve grown up with them. Our images of love, war, family, country — even of things that terrify us — owe much to what we’ve seen on screen. The bar graph at the top of the next column quantifies our love for movies by showing the number of tickets sold, in millions, and the average price per ticket for five selected years. Exercise are based on the numbers displayed by the graph.