What is the scale factor from abc to def?

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

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 what value of (y) is 3^3/3^y =1/9