Final answer:
At Ami's Pizza Parlor, there are 130 different one-topping pizzas possible, calculated by multiplying 5 pizza sizes, 2 types of crusts, and 13 toppings.
Step-by-step explanation:
To calculate how many different one-topping pizzas are possible at Ami's Pizza Parlor, we use the principle of multiplication for counting combinations. Since there are 5 sizes of pizza, 2 types of crusts, and 13 different toppings, we multiply these numbers together.
The total number of combinations is:
5 (sizes) × 2 (crusts) × 13 (toppings) = 130 different one-topping pizzas.
Each size and type of crust can be paired with any of the 13 toppings, resulting in a unique pizza. Thus, when you visit Ami's Pizza Parlor, you can enjoy from a selection of 130 different one-topping pizzas.