Help me with this please

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

Evaluate the expression. (9 + 5)(3 + 2)0

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.