Given that a box has 3 blue marbles, 2 red marbles, and 4 yellow marbles, use the probability formulas to answer the following questions. Reduce all fractions. Use / as the fraction bar and do not use any spaces.

What is the probability of:

Drawing a blue marble?

Drawing a marble that is not red?

Drawing a red and yellow marble?

Drawing a red or blue marble.

Drawing a red marble, put it back, and then drawing a yellow marble?

Drawing a yellow marble, keeping it, and then drawing another yellow marble?

Drawing a yellow marble, given that a red marble was drawn on the first draw and not replaced?