3. Approximately how many years will it take for an account with a balance of $10,000 and 8% compound interest to double? 900 (2) What will be the balance then? $_________ (2) How many years will it take to double again? ___ (1) What will be the balance then? $_______ (2) What will be the balance in year 27? $_________ (2) Work: (6) 4. When will a savings account double in value if the current balance is $26,500 with an annual compound interest rate of 7.2%? _____ years (2). The balance then will be $________ (2) What will be the balance in 20 years: $________? (2) In ____years (2), the account will have a balance of $212,000. Work: (6) 5. Which pays more, simple or compound interest? _________________ (1) Provide an example as proof using the problems above. (3)