1) 945*4= 3780
2) 3780/5=756
3) 756*7=5292
4) 5292+24693=29985
1)12*3*х=36х
2)10*х*6=60х
3)5*a*7*b=35аb
4)8*m*12*n=96mn
5)24abc
6)100xyz
15 углов и все по 45 и 53 градуса
-8,6 · 4 - 14 · (- 1,3) + ( - 4,3) · ( - 8 ) = 18.2
1) <span>-8,6 · 4 = -34.4
2) </span><span>14 · (- 1,3) = -18.2
3) </span><span>( - 4,3) · ( - 8 ) = 34.4
4) </span>-34.4 -(-18.2) = -34.4 +<span>18.2 = -16.2
5)</span><span>-16.2+34.4 = 18.2</span>