Question

ME AJUDEM POR FAVOR PRA AMANHA!!!

Answer 1

$\boxed{\boxed{d) \ 3^{89}}}\\\\\\3^{90} = 3 \cdot 3^{89}\\\\\dfrac{3^{90}}{3} = \dfrac{3 \cdot 3^{89}}{3} = 3^{89}$