There are 6 red, 3 blue, 5 green, and 4 yellow marbles in a bag. Two marbles are removed from the bag, one after another, without replacement.

At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad