Exercise are based on the data shown by the graphs.How well do your answers to Exercises 1...

Exercise are based on the data shown by the graphs.

How well do your answers to Exercises 1 and 2 model the data shown by the graphs?

Exercise 1

In 2004, the system’s income was $575 billion, projected to increase at an average rate of $43 billion per year. In which year will the system’s income be $1177 billion?

Exercise 2

The data for the system’s outflow can be modeled by the formula

where B represents the amount paid in benefits, in billions of dollars, x years after 2004. According to this model, when will the amount paid in benefits be $1177 billion? Round to the nearest year.