Find the Range 11,10,15,17,14

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

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.)

Which function has the domain x> -11