Kevin played a trivia game. Each correct answer is worth 21/3 points, and each incorrect answer is worth -1/3 point. What was Kevin's score?
A phone displays kevins statistics, with 15 correct and 15 incorrect.

Rewrite the hyperbolic equation 4y^2 -9x^2 +54x-8y-113=0

How do i do this activity, is appreciated

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.)