Correct answers only ! i cannot retake solve for x.

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?

Draw a scaled copy of the circle using a scale factor of 2

Find the distance between (0,5) & (-4,2)