Please help. Given formula, just plug it in to find answer.

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

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.)

Solve the equation x/4 - 5= -8 -27 -12 -7 12