1. What unknown number makes this equation true?

2. Jenna made a picture graph in which each star represents some number of students. She forgot to complete the key. The difference between the number of students who voted for blue and the number of students who voted for red is greater than 5 but less than 9. Which of these is a possible number of students each star could represent?

3. 26 + ? = 28

4. 5 + ?? = 64

5. ? + 73 = 77

6. 25 + ?? = 41

7. A pizza costs . If you pay with a c$ will you get? Write and solve the equation.

8. Solve for f: f - 4 = 6f + 26

9. Solve for x: 5x - 14 = 8x + 4

10. Solve for x:4(1-x)+3x=-2(x+1)