P(green or red)

[nycmath]

A bag has 50 green marble, 12 yellow marbles, 4 blue marbles and 15 red marbles. What is the probability of randomly selecting a green or a red marble?

[Eigenvalue]

Here is my work for the question:

[nycmath]

Here is my work for the question:

Thanks but I said to leave some for the rest of the week. We texted about this a few hours ago.