Question

I need help teaching my nephew to solve these problems.

Answer 1

Simplify;

$(-\frac{3}{12})^{-2}$

This is;

$\begin{gathered} (-\frac{3}{12})^{-2}=(-\frac{12}{3})^2 \\ (-\frac{12}{3})^2=(-4)^2 \\ (-4)^2=-4\times-4 \\ (-4)^2=16 \end{gathered}$