Ответ: a) 11,259; б) 20,28; в) 8,9775
\[2.02 - 0.45 + 5.0505 \cdot 2 + 39.1 \cdot 0.01 = 2.02 - 0.45 + 10.101 + 0.391 = 1.57 + 10.101 + 0.391 = 11.671 + 0.391 = 12.062\]
\[(6 - 1.96) \cdot (10.2 - 5.7) + (6.8 + 2.6) \cdot (0.37 + 0.03) = 4.04 \cdot 4.5 + 9.4 \cdot 0.4 = 18.18 + 3.76 = 21.94\]
\[(1 - 0.34) \cdot (2 - 0.75) + 1.05 \cdot (4.882 + 3.018) = 0.66 \cdot 1.25 + 1.05 \cdot 7.9 = 0.825 + 8.295 = 9.12\]
Ответ: a) 12,062; б) 21,94; в) 9,12