A school survey found that 18 out of 24 students prefer pizza to hamburgers. If the school has 300 students, which is the best prediction of the total number of students who prefer pizza?

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.)

True or false look at the picture pls : /

How do you solving the solution of each system using elimination?