please answer both parts!! thank you

16. A pension fund must pay out $1 million next year, $2 million the following year, and then $3 million the year after that. 1) If the discount rate is 8%, what is the duration of this set of payments? 2) Assume the interest rate increases by 25 basis points (0.0025). Under this assumption, the bond price will change by %. (8 points)