Jonah bought a 1.5 liter bottle of seltzer. He used 0.8 liter of seltzer in some punch. Which is greater, the amount he used or the amount he has left? Explain how you decided.

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

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.)

What is the result of adding the system of equations? 2x+y=4 3x-y=6