On the grid draw the line with equation y=3

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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?

Standard deviation of 19,29,21,22,23