Show your work for the following question. You may use Excel, but you must show the numbers you put into the Excel function (formula). (Note: You will get zero credit if you fail to show your work). Your insurance company is offering you an investment policy that will pay you $10,000 per year for 18 years. The company's sales department informed you that the policy will cost $120.000. At whint interest rate would this be a fair deal? (Round your answer to twe decimal places)