Consider three investors: Mr. Single invests for one year. Ms. Double invests for two years. Mrs. Triple invests for three years. Company Z’s earnings and dividends per share are expected to grow indefinitely by 2% a year, the next year’s dividend is $6 and the market capitalization rate is 5%. Assume each invests in company Z. What is the expected rate of return for each of these investors? (Do not round intermediate calculations. Enter your answers as a percent rounded to the nearest whole number.)