Somebody help me with 1 & 2 please .

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.)

One integer is 8 times another. if the product is 72, then find the integers

10% of 1,900,000. show me how you got the answer