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A new observation of mathematics in the first volume of grade eight, pages 75 to 80, the answer is urgent. ...
75.76 face one. 1.C 2。 C 3。 A 4。 C

Two. DADDCB

Two. Determine the function image according to the actual problem

That's all DDCA knows. 15. 16 I don't know,

77.78 face 1 to 6 BCCBBB

7.k > negative half value

8.m=-2。 decrease

9.-3

10.( 1)K is not equal to 3.

(2)K>-3

(3)Kb>c

16.2

17.3

18 lazy typing,

79.80 noodles

1 to 6 BADDBA

7.y=x-20 x≥20

8.-2

9.6

10.( 1)m≠ 3/5

(2)m=- 1

1 1.B 12。 C

13 ... four

14. 16

15.25

16. 17 Do it yourself.

Thank you for your adoption. 200% correct rate. Our teacher has changed.

Typing is difficult.