1.8(5.9-211/20)+(1/2+0.28)/0.131.8(5.9-2.2)+(0.5+0.28)/0.131.8(3.7)+0.78/0.136.66+612.66
Ответ: 12.66
1.8(5.9-211/20)+(1/2+0.28)/0.13
1.8(5.9-2.2)+(0.5+0.28)/0.13
1.8(3.7)+0.78/0.13
6.66+6
12.66
Ответ: 12.66