Dante’s Pizza offers 6 different kinds of toppings: extra cheese, green olives, mushrooms, onions, peppers, and tomatoes.

Part a. A 2-topping pizza must have 2 different kinds of toppings on it. Make a list of all the different 2-topping pizzas you could order.

Part b. How many different 2-topping pizzas does Dante’s sell?

Part c. What is the probability of James ordering a 2-topping pizza at random and getting one with olives on it? Answer as a fraction, decimal, AND percent