(Related to Checkpoint 5.6) (Solving for i ) You are considering investing in a security that will pay you $5,000 in 30 years. a. If the appropriate discount rate is 11 percent, what is the present value of this investment? b. Assume these investments sell for $1,239 in return for which you receive $5,000 in 30 years. What is the rate of return investors earn on this investment if they buy it for $1,239 ? a. If the appropriate discount rate is 11 percent, the present value of this investment is $ (Round to the nearest cent.)