How many different meals are available if you select an appetizer, an entrée and a dessert?

Please show how to solve this probability problem:

A restaurant offers a $12 dinner special that has 5 choices for an appetizer, 10 choices for entrees, and 4 choices for dessert.  How many different meals are available if you select an appetizer, an entrée and a dessert?

***please use sentences as this is more like a discussion question