[tex]a)5*5*5=25*5=125 \\ b)0,2*0,2*0,2*0,2=0,04*0,04=0,0016 \\ c)2,3*2,3=5,29 \\ d)( \frac{
7}{9})^3= \frac{343}{729} \\ e) \frac{3}{4}* \frac{3}{4}* \frac{3}{4} * \frac{3}{4}= \frac{81}{256} \\ f) \frac{1}{8}* \frac{1}{8} * \frac{1}{8}= \frac{1}{512} [/tex]