If y varies inversely as x, and y = 12 when x = 6, what is k, the variation constant? a. 2 b. 72 c. 144 d. 1/3

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