Hello can anyone pls help me with this and do step by step on how they got it
it would mean alot if you could help I have a f in math and this would get it to a B
thank you have a good day:)

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Find the roots of the equation below. x^2 - 6 + 9 = 0

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?