[tex]( \frac{23-2}{90} - \frac{6}{5} ): \frac{32-3}{90} =( \frac{7}{30}- \frac{36}{30}) [/tex]:[tex] \frac{29}{90}=- \frac{29}{30}. \frac{90}{29} =-3 [/tex]
2)[24,36]=72
3)156:13x7=84
4)0,255555...>0,252525...
5)[tex]m_{g} = \sqrt{24.54}=36 [/tex]
6) 3x-2=x, 2x=2, x=1 [tex]A_{(1,1)} [/tex]