[tex]a) \ 48\frac{km}{h} = 48\cdot\frac{1000 \ m}{3600 \ s} = 13,(3)\frac{m}{s} \approx13,33\frac{m}{s}\\\\b) \ 1,8\frac{cm}{s} = \frac{1,8\cdot0,1 \ dm}{s} = 0,18\frac{dm}{s}\\\\c) \ 14000 \ g = 14000\cdot0,1 \ dag =1400 \ dag = 14 \ kg\\\\c) \ 0,2 \ m^{2} = 0,2\cdot100 \ dm^{2} = 20 \ dm^{2}[/tex]
