Kate has a bag that contains 7 blue, 5 purple, 12 red, and 6 orange marbles. What is the
probability of not choosing a blue or purple?

The reason why not to pick those colors is probably because it's not her favorite color

3/5 or 60%

Step-by-step explanation:

7 blue, 5 purple,12 red, and 6 orange marbles = 30 marbles

P( not blue or purple) = red or orange/ total

                                    = (12+6)/30

                                     =18/30

                                    =3/5