Describe the number of equations for this problem –6(x + 5) + 3 = –2(x + 4) – 4x

–6x – 30 + 3 = –2x – 8 – 4x

–6x – 27 = –6x – 8

–27 = – 8

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

(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.

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36