Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease,
y = 93(1.74)"
Growth
% increase

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