0.16×9.85+264×0.0985+72×0.985=9.85x(0.16+2.64+7.2)=9.85x10=98.5
=6.85×24+6.85×28+6.85=6.85×(24+28+1)=6.85×53=6.85×50+6.85×3=342.5+20.55=363.05
