please assist

Consider three investors a. Mr. Single invests for one year b. Ms. Double invests for two years c. Mrs. Triple invests for thee years Company Z 's earnings and dividends per share are expected to grow indefinitely by 3% a year, the next year's dividend is $9 and the market capitalization rate is 8% Assume each invests in company Z What is the expected rate of retum for each of these investors? (Do not round intermediate calculotions. Enter your answers as a percent rounded to the nearest whole number.)