end of year 10

L. Assume that you are currently at time 0, and you will receive the first installment of an annual payment of $100 in perpetuity at the end of this year. Eight full years from now you will start receiving the first payment of an additional $150 as perpetuity. Then you will receive an annuity of $200 per year for 15 years starting from year 10. If the market interest rate is 12%, what is the combined present value of these payment streams