oh lord someone in my class is listening to depressed simpson music. (There headphones are unplugged and I think they dont know-) My teacher look mad cause we in math lol

What is the equation of the graph below? y=sec(x)-4

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?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much