So there are twelve non-blue marbles. So that's the number of non-blue. So these are the possibilities that meet our constraints over all of the possibilities. And then if we want to, this isn't in simplified form right here, since both twelve and fourteen are divisible by two. So let's divide both the numerator and the denominator by two, and you get six over seven. So we have a six-seventh chance of selecting a non-blue marble from the bag. Let's do another one.