Ришите неравенства???

Question

Ришите неравенства???

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Answer 1

1) -12,6*1 1/9=-126/10*10/=-14
2) -14+10,8=-3,2
3) -3,2:6 6/7=-32/10:48/7=7/15
4)7/15+2 3/10=7/15+23/10=
14/30+69/30=83/30=2 23/30
Удачи!:)