Question

alguem me ajudaaa pliiiis aaaa

Answer 1

$\frac{\left(-5\right)^2-4^2+\left(\frac{1}{5}\right)^0}{3^{-2}+1}\\\\=\frac{\left(-5\right)^2-4^2+1}{3^{-2}+1}\\\\=\frac{10}{3^{-2}+1}\\\\=\frac{10}{\frac{1}{9}+1}\\\\=\frac{10}{\frac{10}{9}}\\\\=\frac{10\cdot \:9}{10}\\\\=\frac{90}{10}\\\\\frac{90}{10}=9\\\\=9$c) 9