A bag has 9 marbles 2 green, 4 red, and 3 blue what is the probability to get a blue and then a green

At which value in the domain does f(x) =0?

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !