Can someone help me with these?

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?

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12