There are 5 possible ice cream flavors to choose from. Additionally, we can choose one topping out of the 3 options. To find the number of possible outcomes, we will use the Fundamental Counting Principle.
ccccc
Number of & & Number of [0.2em]
Flavors & & Toppings [0.3em]
5 & * & 3
Therefore, the number of possible orders of ice cream with one flavor chosen and one topping chosen is the product of these two values.
5 * 3 =15