9*8-4*0+12:6=72-0+2=74
466+309-24:4:2=466+309-6:2=466+309-3=772
32:4*9-0*7+14=8*9-0+14=72+14=86
40:5:2+6*7=8:2+42=4+42=46
6*5+25:5*9=30+5*9=30+45=75
4*5:2+2*9*0=20:2+0=10
4/7 - 3 целых 1/2b < 0
<span>3 целых 1/2b < 4/7
</span>b<8/49
202 + 50b < 0
50b<-202
b<-4.04
<span>48,4-0,22b<0
</span>0.22b<48.4
b<220
19217 : 30
180 640
121
120
17-остаток
81569 : 500
500 163
3156
3000
1569
1500
69-остаток