Please help i'll mark big brain

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.)

If angle 2=3x +1 and angle 3=2x +4what is angle 2

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?