I. How many years will it take an investment to triple (3) itself if the interest rate is 8%, compounded annually? (15%) II. Suppose your credit card calculates interest based on 8% APR (annual percentage rate or nominal interest rate). Credit card is compounded monthly. Moreover, suppose your current outstanding balance is $5,000 and you skip payments for 6 months. What would be the total balance 6 months from now? (15%)