Use the following scenario to answer the questions that follow: Roddy Richards invested \$12014.88 in Wolverine Meat Distributors (W.M.D.) five years ago. The investment had yearly arithmetic returns of 9.7%,8.1%,15%,7.2%, and 15.4%. a. What is the arithmetic average return of Roddy Richard's investment? [10 points] b. What is the geometric average return of Roddy's Richard's investment? [10 points]