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Tim is building a model of a castle with small wooden cubes. So far, Tim has constructed part of a security wall of the castle, as shown below. Each wooden cube has a side length of ft.

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