Помогите решить второе

А) $(- \frac{3}{2})^3+( \frac{5}{4})^2=- \frac{27}{8}+ \frac{25}{16} = \frac{-54+25}{16} = -\frac{29}{16}=-1 \frac{13}{16}$
б) $\frac{2^{17}}{2^{15}}= \frac{2^{15}2^{2}}{2^{15}}=2^2=4$
в) $\frac{9^8}{3^{16}} = \frac{(3^2)^8}{3^{16}} = \frac{3^{16}}{3^{16}}=1$
г) $\frac{15^5}{7^5}* \frac{7^5}{15^5}=1$
д) $15^5:(7.5)^5=15^5:( \frac{15}{2})^5=15^5* \frac{2^5}{15^5}=2^5=32$
е) $\frac{5^65^3}{(5^2)^4}= \frac{5^9}{5^8}=5$