Algebra 8 - Homework Answers

Here are the answers to the second benchmark review (problem #1 is Simplify 3^3)...

1. 27
2. 10 7/20
3. 12
4. approximately 0.86
5. (1/2) X $18 ...  or ... 0.5 x $18
6. -1
7. 18
8. -16
9. -24
10. 3(x - y)
11. Inverse property of multiplication
12. Identity property of addition
13. Commutative property of multiplication
14. -6x + 6y
15. 36
16. 20
17. m - 6
18. 123
19. -40
20. -60
21. -7
22. abs val of-138
23. 5x - 28
24. -2