Hannah’s favourite cereal comes in 4 sizes. Which is the better buy? (Hint: check each one) * A, 200 g for $1.58
B, 400 g for $2.97
C, 775 g for $5.49
D, 1000 g for $7.52

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