hi i need help pls!

John is considering the purchase of a lot. He can buy the lot today and expects the price to rise to $15,500 at the end of 10 years. He believes that he should earn an investment yleld of 8 percent compounded annually on his investment. The asking price for the lot is $8,000 Required: a. What is the internal rate of return compounded annually on the investment if John purchases the property for $8,000 and is able to sell it 10 years later for $15,500 ? Note: Do not round your intermediate calculations and round your final answer to 2 decimal places. b. Should he buy the lot