1.36/20%=180 12.8*75%-0.6=9
2 120/(1-60%)=300
3 20(1-1/5)(1-40%)=9.6
4 220/(25%+30%)=400
5 (18-15)/15=20%
6 4000(1+2.88)(1+2.88)(1+2.88)(1+2.88)(1+2.88)=4610
1.36/20%=180 12.8*75%-0.6=9
2 120/(1-60%)=300
3 20(1-1/5)(1-40%)=9.6
4 220/(25%+30%)=400
5 (18-15)/15=20%
6 4000(1+2.88)(1+2.88)(1+2.88)(1+2.88)(1+2.88)=4610