Would would i put in for cfj, pmt, pv, i , n etc. to get the answer for this??

1. A local magazine is offering a $2,500 grand prize to one lucky winner. $1,000 will be paid on the day of the drawing. The remaining $1,500 will be paid in three annual payments of $500 each, starting one year after the drawing. How much would this prize be worth to you if you can earn 9 percent on your money?

2. Anne plans to save $40 a week for the next 5 years. She expects to earn 3 percent for the first 2 years and 5 percent for the last 3 years. How much will her savings be worth at the end of the 5 years?

3. You will receive annual payments of $2,400 at the end of each year for 15 years. The first payment will be received in year 6. What is the present value of these payments if the discount rate is 7 percent?