The median weight of a boy whose age is between 0 and 36 months can be approximated by the function w (t )equals 7.35 plus 1.77 t minus 0.0025 t squared plus 0.000427 t cubedwhere t is measured in months and w is measured in pounds. a) What is the weight of the boy at age 8 months?b) What is the rate of change of the boy's weight with respect to time at age 11 months?

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.