Sterling has a bag of marbles with 5 blue marbles, 4 white marbles, and 6 red marbles.

Find the following probabilities of Sterling drawing the given marbles from the bag if the first marble(s) is(are) returned to the bag after they are drawn.

a) A Blue, then a red =  

b) A red, then a white =  

c) A Blue, then a Blue, then a Blue =