10lg((11-2)*100.1*80+3-100.1*85)=48.0322829963979
11-2=9
100.1*9=900.9
900.9*80=72072
72072+3=72075
100.1*85=8508.5
72075-8508.5=63566.5
Ig(63566.5)= 4.80322829963979
4.80322829963979*10= 48.0322829963979
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80+10lg11= 90.41392685158225
lg(11)=1.041392685158225
1.041392685158225*10=10.41392685158225
80+ 10.41392685158225=90.41392685158225