A 300$ suit is marked down by 20% what is the sale price

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.)

For each proportion find the unknown number x 1/5/8=×/15

Is the figure congruent? yes or no?