Review the proof (not in order ) of the identity, HURRY TIMED TEST AND LOOK AT THE PICTURE

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

What is the binomial expansion of (2x-3)^5

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.