There are 8 parents and 43 students going on a school trip. two groups are made, a large one with thirty students and five parents, and a small group with 13 students and three parents. how many different ways can be the parents be chosen for the small group? how many ways can the students be chosen for the large group if stefan and dylan must be in the small group? how many ways can the groups be arranged if reena and both her parents must be in the small group?

(50 ) 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.