please show step by step(no excel)

Thank you!

1. Keenan has won the lottery for $20 million. He is offered a cash payment now of $15 million, or 10 annual payments of $2 million. a. What is the interest rate that makes these two amounts equal? - PV=15m - FV= o N= - Pmt= - ANSWER: b. If you can invest at 8% how much would you have after 20 years if you invested the $1,000,000 ? - PV= - FV= o I= - Np= - Pmt=