PV of unequal cash flows. You decide to become a professional gambler.

You estimate that you can make $20,000 next year betting on sports. You then figure you will be better at it, so you estimate you will make $30,000 at the end of the second year and $35,000 at the end of the third year. What is the present value of this stream of income if the interest rate is 6.5%, annually?