1.The Rock Insurance Co. will pay you $3,100 a year for 20 years in exchange for $30,000 today. What interest rate will you earn on this annuity? (enter your answer as a percentage with two decimal points i.e. 15.33 dont include the % symbol)

2.When you were born, your parents opened an investment account in your name and deposited $500 into the account. The account has earned an average annual rate of return of 4.8 percent. Today, the account is valued at $36,911.22. How old are you? (enter your answer as a number with two decimals i.e. 41.25)