Tolong jawabanya ya oke

Jawaban:

1.positif, nol,dan negatif

2.-12

3.-4,-3,-2,-1,0,1,dan 2

4.-2 < -1

5.-12,-4,0,1,5,6,9,15

6.20-4 =20+(-4)=16

7.a.-25+(-11)×2= -25+((-11)×2))= -25+ -22= -47

b.40:8+20×2= 5+(20×2)=5+40= 45

nomor 8 yang di atas