Solve: 1/3a2 - 1/a = 1/6a2 The solution is a =

1. D. - 120a2b2c2

C. 4x6y5

C. 5a - 7b + c

B. x + 2y - 5z

C. 230.02

C. 6 - 2

B. - 1/5

10. B. - 11/12

11. B. 1 1/2

13. C. 18

14. A. - 448

15. B. 3/10

Don't know

17. C. 1 1/8

18. C. - 2 + 3

19. A. 4a + b - 3c

20. D. - X+XY-7y

21. C. 28.56

22. B. 96

23. A. visualizing the relationship between positive and negative numbers.

24. A. 7/18

25. B. - 4.2