Formative Assessment 120

Assessment Problem: 

The Large Foot Pizza Company sells a large pizza that contains 36 pieces. Your class has purchased two of these pizzas for an upcoming class party. Everyone has agreed that each person will receive the same amount of pizza.
1. Suppose only 4 students attend the class party, how many pieces of pizza would each student receive? What if 9 students attend the class party? Explain how you determined these.
2. Suppose that 30 students attend the class party, how many pieces of pizza would each student receive? Explain how you determined this.
3. At the party all students receive one and a half slices of pizza. How many students attended the party? Explain how you determined this.
Write a number sentence that would allow you to find the number of pieces of pizza for any number of students. Explain your number sentence.