Someone plss helpp show work

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

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.)

Complete this sentence with the best of choices given