B: 4-5&1/2

Need helppp I forgot how to do these, four minus five and a half

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 the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41