Aa Aa 8. Implied interest rate and period Consider the case of the following annuities, and the need to compute either their expected rate of return or duration David inherited an annuity worth $5,497.05 from his uncle. The annuity will pay him seven equal payments of $950 at the end of each year. The annuity fund is offering a return of 5.90% 6.75% 5.00% David's friend, Keanu, has hired a financial planner for advice o Considering Keanu's current expenses F. 4.35% and expected future lifestyle changes, the financial planner has stateatnat once Keanu crosses a threshold of $1,870,875 in savings, he will have enough money for retirement. Keanu has nothing saved for his retirement yet, so he plans to start depositing $25,000 in a retirement fund at a fixed rate of 5.00% at the end of each year. It will take years for Keanu to reach his retirement goal