Me on this
1.a bag has 2 green marbles, 3 red marbles, and 3 yellow marbles. what is the probability that you pick a green marble, do not replace it, and pick another green marble?
a.3/28
b.1/28
c.9/56
d.1/8
2.a bag has 2 yellow, 7 red, and 1 green marble. what is the probability of picking a red marble, replacing it, and then picking another red marble?
a.1/25
b.1/50
c.49/100
d.7/100
3.a bag contains 5 white marbles, 4 black marbles, and 1 red marbles. find the probability of picking a red marble?
a.1/10
b.1/2
c.2/5
d.1/5
4.find the number of permutations of the first 13 letter of the alphabet taking 4 letters at a time.
a.17,160
b.15,120
c.3024
d.504

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.