2. Select all the statements or equations that show that events A and B are independent.
a.
P(A and B) = P(A). P(B)
b.
P(A or B) = P(A) + P(B) - P(A and B)
C.
P(AB) = P(A) and P(BA) = P(B)
d.
P(A) is the same whether event B happens or not.
e.
P(A and B)
P(
AB) =
P(A)

(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.

Apudding recipe requires 2/3 of a cup of milk for every 1 3/4 cups of sugar. what is the unit rate of sugar to milk in the pudding recipe?

15. if the 8% tax on an item amounts to $0.96, what is the final price (tax included) of the item?