Acomputer network manager wants to test the reliability of some new and expensive fiber-optic ethernet cables that the computer department just received. the computer department received 4 boxes containing 30 cables each. the manager does not have the time to test every cable in each box. the manager will choose one box at random and test 6 cables chosen randomly within that box. what is the population of interest?
a. 120 cables
b. b. 60 cables
c. the one box that was chosen at random from the 4 boxes
d. the 4 boxes
e. the 6 cables chosen randomly for testing

(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.