Someone please help with this question

Match each expression with its simplified form.

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

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?