Among us in real life

The variable in a relation who’s value depends on the value of the independent variable is called what?

Which of the following is correct interpretation of the expression -4+13

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?