Order this set of numbers from greatest to least. Then explain the order, referring to the number line in your explanation. -1.79, 2 1/4, 2.54, -4

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?