please solve it

Question 15 6 pts A $100 bond with 9% annual coupons matures at par in 3 years, and its yield rate is 6%. Calculate the Macaulay duration At least 2.8 but less than 2.9 years At least 3.0 years At least 2.9 but less than 3.0 years At least 2.7 but less than 2.8 years At least 2.6 but less than 2.7 years Less than 2.6 years Question 16 3 pts (Continued from the last question.) Calculate the modified duration of the bond