b)
[tex]\frac{2}{3*3-2} = \frac{2}{9-2} = \frac{2}{7}[/tex]
c)
[tex]\frac{3^2 + 5*3}{6} = \frac{9+15}{6} = \frac{24}{6} = 4[/tex]
d)
2*4 + [tex]4^2[/tex]= 8 + 16 = 24
e)
[tex]2^2 - 2^3 = 4 - 8 = -4[/tex]
f)
3*4 - 1 = 12 - 1 = 11