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People's education printing plate seventh grade mathematics unit 9 autonomous learning
I made a little, and I'll send it to you later, without adding anything.

1.x/2-2 & lt; =- 1 "or"< "

2.& gt,& lt,& lt

3.a & gt 1

4.x & gt2,x & gt-2,- 1 & lt; x & lt2

5.x & lt=-5/2

6.& gt

7.0<x< 3

8.3

9. 10g & lt; X & lt330 g

10 . a & gt; seven

1 1 . b & lt; x & ltc

12.6

13. 180

14 . a & lt; three

15.A

16.C

17.C

18.A