A bag contains purple marbles and green marbles, 39 in total. The
number of purple marbles is 9 less than 3 times the number of
green marbles. How many purple marbles are there?

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?

Joanie watched 1 out of three of a movie in the morning

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is