г) $$\frac{3^{7} \cdot 3^{4}}{3^{5} \cdot 3^{3}}$$ = $$\frac{3^{7+4}}{3^{5+3}}$$ = $$\frac{3^{11}}{3^{8}}$$ = $$3^{11-8}$$ = $$3^3$$ = 27
Ответ: 27