Ten annual returns are listed in the following table:

Return (%) -19.9 16.9 17.5 -49.2 43.3 1.8 -16.2 46.2 45.2 -3.6

a. What is the arithmetic average return over the 10-year period?

b. What is the geometric average return over the 10-year period?

c. If you invested $100 at the beginning, how much would you have at the end?