Question

a)5 ^1
b) 5^2
c) 5^3
d) 5^4

Answer 1

$x=\left(5^2\right)^3=5^{2\times3}\Longrightarrow \boxed{x=5^{6}}$

$y=\bigg(\dfrac{5^3}{5^2}\bigg)^4=\left(5^{3-2}\right)^4=5^{1\times4}\Longrightarrow\boxed{y=5^4}$

$\dfrac{x}{y}=\dfrac{5^6}{5^4}=5^{6-4}\Longrightarrow\boxed{\dfrac{x}{y}=5^2}$

$\mathbf{Alternativa\ B.}$