The initial value of an exponential function is 1.8. The rate of growth is 4.2%. Which models the value of the function, y, over time t?​

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