Round all answers to 4 decimal places. a. A bag contains 4 green marbles, 5 red marbles, and 6 blue marbles. If a marble is drawn from the bag, replaced, and another marble is drawn, what is the probability of drawing first a green marble and then a blue marble? b. A bag contains 5 white marbles, 6 blue marbles, and 4 red marbles. If two different marbles are drawn from the bag , what is the probability of drawing first a white marble and then a red marble