Bobby and his friends were planning their trip to a water park. The park offers 13 total rides including 4 lazy rivers. If Bobby randomly chooses to go on 4 of the rides, what is the probability that exactly 2 of the chosen rides are lazy rivers?

Abaker makes 186 cookies. some are chocolate chip and some are oatmeal raisin, and both kinds are made with and without nuts, as shown in the table above. because they are more popular, the baker made 2/3 of the cookies chocolate chip. if a chocolate chip cookie is chosen at random, what is the probability that it will have nuts? a) 21/93 b) 21/62 c) 41/93 d) 21/41

The sum of two numbers is 86, and their difference is 20. find the two numbers

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9