When calling the function orderPizzas, what is the formula used to calculate the required number of pizzas?

The correct answer involves understanding how many pizzas are needed based on the number of people and the common assumption about pizza portioning. If each pizza is assumed to serve approximately three people, the formula to determine the number of pizzas needed would naturally be to divide the total number of people by three. This gives a straightforward and efficient method to estimate how many pizzas to order, ensuring that there are enough slices for everyone while avoiding over-ordering.

Using division in this context reflects the shared nature of pizzas—since they are typically enjoyed in slices, dividing by three offers a practical calculation for pizza quantity. This approach is the most common in food service scenarios where servings are often expressed in terms of how many people a certain quantity of food can serve.

Calculating the number of pizzas this way can also help if you need to round up to ensure everyone has enough to eat, as you can always take the ceiling of the result if you end up with a fraction.