Three ounces of cinnamon cost 2.40. if there are 16 ounces in 1 pound, how much does cinnamon cost per pound?

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