10. Which relation is a function?

A. {(–2, –12), (–2, 0), (–2, 4), (–2, 11)}

B. {(0, 1), (0, 2), (1, 2), (1, 3)}

C. {(–4, –6), (–3, –2), (1, –2), (1, 0)}

D. {(8, 1), (4, 1), (0, 1), (–15, 1)}

Find the value of the variable and the length of each secant segment.

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.)

Simplify using positive exponents only.