Tameeka tells Marcus, When you add 16 to my mystery number then subtract 20, you get the same result as when you add my mystery number to itself, then add 20 and subtract 16.” What is Tameeka’s mystery number?

Which is an equation for the nth terms of the sequence 12,15,18,21

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.)

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.