Plz help i will give 30point

On a piece of paper graph f(x)=5•(0.4)^x

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

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.)