The lockers at smith high school are numbered 1-1000. seth starts at the beginning and opens the even numbered lockers. tacoda then starts at the beginning and opens all numbers that are multiples of 2. lastly, brady starts at the beginning and opens all numbers that are multiples of 5. which is the first locker that brady is supposed to open that is already open?
a) 10
b) 15
c) 30
d) 60

Find the solution of this system of equation -7x+y=-20 9x-3y=36

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

(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.