The teacher spent 18 of the class period reviewing the answers to a worksheet. The class period was 1 12 hours in length. How many minutes did the teacher spend reviewing the worksheet? Enter your response as a decimal.

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