The revenue for a new product that will stay in market for five years is projected at $45,000 in year 1, and the revenue is expected to reduce by $5,000 per year. What is the present value of the projected revenue stream if the interest rate is 8% per year compounded annually?

Jason is looking for an engagement ring to offer his girlfriend. he has found a similar ring at each of four different jewelry stores. he doesn't have enough money to pay for the ring in cash, so he is planning on opening a line of credit (credit card) at the store he ends up buying the ring from. the chart below outlines the difference in the price of the rings the different stores offer as well as the difference in credit options. jason plans to pay off the ring purchase in 36 months. according to the information in the table, which of the jewelry stores will have the cheapest ring in the end?