Chapter 4 Test Solutions

1. 50

2. 33

3. 25

4. 45

5. a + b = b + a

6. 5 • a + a = 6 • a

7. a • (b + c) = a • b + a • c

8. a • a = a²

9. n + 10

10. 6 – (n • 2)

11. n – 12

12. n < 12

13. 12 – n

14. (n + 2) ÷ (n + 8)

15. n – 6

16. 7 – (n + 9)

17. 18

18. 10

19. 30

20. 2

21. ¹⁰/₈₀ or ¹/₈

22. ⁿ/ ₄₀

23. n = 6

24. n = 7

25. n = 8

26. n = 5

27. n = 5

28 – 32 I will show you these graphs in class.

33. H = 40