In a recent survey of 100 people, 52 indicated that they had flown on an airplane at least once, and 28 indicated that they had ridden on a train at least once. Only 10 of the respondents indicated that they had both flown on an airplane at least once and ridden on a train at least once. What is the probability that a person randomly selected from the sample indicated they had ridden on a train at least once but had never flown on an airplane

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

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.