Javascript
Consider the following sets
U = {all real number points on a number line}
A = (solutions to the inequality 3x + 4 2 13}
B = {solutions to the inequality -x + 3 5 4}
For which values of x is AUB=0?
2 25x53
x 52 and 23
x < 2 and x > 3

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?