Introduction to the counting principle Ravi is ordering an ice cream dessert. He must order a size and a flavor of ice cream. There are 3 sizes and choose from. How many different ice cream desserts could he order?

To solve the problem using the counting principle, we need to identify the known conditions: 1. **Sizes of ice cream**: There are 3 different sizes available. 2. **Flavors of ice cream**: The problem does not specify the number of flavors, so we will denote the number of flavors as \( f \). According to the counting principle, if there are \( n \) ways to do one thing and \( m \) ways to do another, then there are \( n \times m \) ways to do both. In this case, Ravi can choose a size and a flavor. Therefore, the total number of different ice cream desserts he could order is given by the formula: \[ \text{Total Desserts} = \text{Number of Sizes} \times \text{Number of Flavors} \] Substituting the known values: \[ \text{Total Desserts} = 3 \times f \] Since the number of flavors \( f \) is not provided, we cannot calculate a specific numerical answer. However, if you provide the number of flavors, I can calculate the total number of different ice cream desserts Ravi could order.