1. A function () gives the wholesale price in dollars of a package of cookies after n packages have been sold. Interpret the meaning of (124) = 0.8.

3. The function () can be used to approximate the total average credit card debt in a U.S. household (in thousands of dollars) t years after 1995. Interpret the meaning of (29) = 21.5.

8. Given the function () = + 2

a. Evaluate (5)

b. Evaluate (0)

c. Determine x when () = 2

9. Given the function () = 8 + 9

a. Evaluate (3)

b. Evaluate (0)

c. Determine x when () = 39

11. Identify the rate of change and initial value for the function () = 9 10

13. Identify the rate of change and initial value for the function () = 1

15. Calculate the rate of change of the linear function that contains the points (15, 30) and (7, 14).