There is a 60% chance a computer server will stay operational (i. e. doesn't crash) all day. if a company's website uses 3 servers acting independently, find the probability that the site stays up all day (i. e. find the probability that at least 1 server stays operational all day). leave your answer as a decimal and do not round. hint: first use the complement rule to find the probability a single server crashes in a day. then use the multiplication rule to find the probability that all servers will crash in a day. then, finally, use the complement rule again to find the probability that at least one stays operational all day.

Which one is the correct answer, and why?

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?

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.