Angela’s average for six math tests is 87. on her first four tests she had scores of 93, 87, 82, and 86. on her last test, she scored 4 points lower than she did on her fifth test. what scores did angela receive on her fifth and sixth tests? fifth test = 89; sixth test = 85 fifth test = 85; sixth test = 81 fifth test = 85; sixth test = 89 fifth test = 90; sixth test = 86

(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.