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The seventh grade mathematics first volume all-in-one exercise book answers.
Page 9:

I. 1。 a2 . D3 . a4 . D5 . a6 . B7 . c8 . B9 . c 10 . b。

Two. 1 1.& gt& gt& gt 12.-8 -2 1/3 13. 15 14.6 15.3 16.447 17.2 18.-a 19.4 -3

III.20-2.5

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