1. а)18+(18*0.2) = 18+3.6 =21.6
б) 18+455 = 473
в) 18+(18*1.3) =18+23.4=41.4
2. а) 30-(30*0.1)= 30-3=27
б)30-30*0.62=30-18.6=11.4
в)30-30*0.9=30-27=3
1. а)18+(18*0.2) = 18+3.6 =21.6
б) 18+455 = 473
в) 18+(18*1.3) =18+23.4=41.4
2. а) 30-(30*0.1)= 30-3=27
б)30-30*0.62=30-18.6=11.4
в)30-30*0.9=30-27=3