1) David has a savings account with a 2,000 balance today. The account earns an annual percentage rate of interest of 2.75%, compounded monthly. David plans to make no other deposits or withdrawals. How many years will it take David's account balance to double?

2) In the last three years a stock had returns of 32.00%, -27.50%, and 9.00%. What was the arithmetic average annual return of the stock? (Enter your answer as a percentage rounded to 2 decimal places. For example, enter 1.53% instead of .0153.)