Val can pay $7.99 per month to watch unlimited movies. If she does not choose that plan, she must pay $2.99 per

each movie. She estimates that she will watch movies

based upon this prediction model

# of movies 0 1 2 3 4
probability 0.12 0.10 0.20 0.42 0.16

What is the expected number of movies Val watches per month?

Round to one decimal place.

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?

(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.