Answer:
1: -2.33 or -7/3
2: - 2.16 or -13/6
3: 3.49 x 10^4
4: 4.28*10-7
5: 0.81 or 9/11
6. 3
7: 8
8: 9 or up
9: 5 or up
10: 0-36
I hope any of this helps.... :D