Jenny Enterprises has just entered a lease agreement for a new manufacturing facility. Under the terms of the agreement, the company agreed to pay rent of $12,000 per month for the next 9 years with the first payment due today. If the APR is 6.36 percent compounded monthly, what is the value of the payments today?

You are set to receive an annual payment of $12,200 per year for the next 18 years. Assume the interest rate is 7.1 percent. How much more are the payments worth if they are received at the beginning of the year rather than the end of the year?

You have $14,000 and will invest the money at an interest rate of .39 percent per month until the account is worth $20,800. How many years do you have to wait until you reach your target account value?