A= 3[tex](\frac{1}{2})^{3}[/tex]

A= 3x[tex]\frac{1}{8}[/tex]

A= [tex]\frac{3}{8}[/tex] = 0,375

B= [tex]5(-\frac{3}{4})^{2}[/tex]

B= 5x [tex]\frac{9}{16}[/tex]

B= [tex]\frac{45}{16}[/tex]

C= [tex]\frac{2}{3}(\frac{2}{3})^{3}[/tex]

C= [tex]\frac{2}{3}*\frac{8}{27}[/tex]

C= [tex]\frac{16}{81}[/tex]

D= [tex]-\frac{5}{2}(-\frac{4}{5})^{2}[/tex]

D= [tex]-\frac{5}{2}* \frac{16}{25}[/tex]

D= [tex]-\frac{8}{5}[/tex]

E= [tex]-\frac{7}{3}(-\frac{2}{3})^{-2}[/tex]

E= [tex]-\frac{7}{3}*\frac{9}{4}[/tex]

E= [tex]-\frac{21}{4}[/tex]

F= [tex](-\frac{2}{3})^{3}(-\frac{1}{4})^{2}[/tex]

F= [tex]-\frac{8}{27}*\frac{1}{16}[/tex]

F= [tex]-\frac{1}{54}[/tex]