Twenty years ago, you won a state lottery, and you received $15,000 at the end of each of the next 10 years, and $20,000 at the end of years 11 through 15. Since you did well in FIN 3403, you decided to invest each of your lottery payments. If you earned 9% per year, how much do you have at the end of year 20?

Please include how to do it in a financial calculator.