Refer to the diagram at right to answer the questions below. A) Copy the diagram and add two tiles so that the result is a value of -2. You can add positive and/or negative tiles. Show the tiles you added to get this answer.
B)Copy the diagram again, but this time remove four tiles(again positives and/or negatives) so that the result is a value of 2. Show the tiles you removed to get this answer. (Diagram)

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(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.