The bar graph shows that in 2000 and 2001 , the U.S. government collected more in taxes than it spent, so there was a budget surplus for each of these years. By contrast, in 2002 through $2009,$ the government spent more than it collected, resulting in budget deficits.
(GRAPH CAN NOT COPY)
a. In $2006,$ the government collected 2407 dollar billion and spent 2655 dollar billion. Find $2407+(-2655)$ and determine the deficit, in billions of dollars, for 2006 b. In $2007,$ the government collected 2568 dollar billion and spent 2730 dollar billion. Find the deficit, in billions of dollars, for 2007 .
c. Use your answers from part (a) and (b) to determine the combined deficit, in billions of dollars, for 2006 and 2007