Chantel drew a picture of her dog on a piece of paper that is 12 centimeters long. she used a copy machine to enlarge her drawing. she used the 115% setting to make each new copy. she then used each new copy to generate the next copy, using the same copier setting.

enter a recursive formula that will give the length of each new copy.

possible

a_1 = 12

a_n=1.15a_n-1

i want to know howto show work

(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.