A bag contains 3 red marbles, 4 blue marbles and 5 yellow marbles.

In this experiment from the bag, you select a marble, record it and place it back into the bag.
You then select a second marble.

What is the probability that you draw 2 blue marbles?

M? aoc=96 ? space, m, angle, a, o, c, equals, 96, degree \qquad m \angle boc = 8x - 67^\circm? boc=8x? 67 ? space, m, angle, b, o, c, equals, 8, x, minus, 67, degree \qquad m \angle aob = 9x - 75^\circm? aob=9x? 75 ? space, m, angle, a, o, b, equals, 9, x, minus, 75, degree find m\angle bocm? bocm, angle, b, o, c: