**1. **After placing $8,000 in a savings account paying annual compound interest of 8%, calculate the amount that will accumulate if it is left for 8 years?

**2.** You have just introduced “must have” headphones for the iPod. Sales of the product are expected to be 20,000 units this year and are expected to increase by 16% annually in the future. What are the expected sales in each of the next three years? If the 20,000 units were expected to increase by 18% a year, what are the expected sales next year for this product?

**3. **To pay for your education, you have taken out $28,000 in student loans. If you make monthly payments over 13 years at 5% compounded monthly, how much are your monthly student loan payments?

**4. **To buy a new house, you must borrow $150,000. To do this, you take out a $150,000, 20-year, 10% mortgage. Your mortgage payments, which are made at the end of each year (one payment each year), include both principle and 10% interest on the declining balance. What amount will your annual payment be?

**5. **How much do you have to deposit today so that, beginning 11 years from now, you can withdraw $9,000 a year for the next 8 years (periods 11 through 18) plus an additional amount of $18,000 in the last year (period 18)? Assume an interest rate of 6%.