My math assignment is due in 15 min pls help with this question

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.)

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)