Evaluate ${\left(\frac{1}{5}\right)}^{-3}\times {\left(\frac{1}{5}\right)}^{-2}$

Evaluate ${\left(\frac{-1}{2}\right)}^{-2}\times {\left(\frac{-1}{2}\right)}^{-3}$.

If the value of ${\left(\frac{-7}{5}\right)}^2\times {\left(\frac{-2}{7}\right)}^{-2}$ is of the form $\frac{k}{100}$, then find the value of $k$.

Evaluate ${\left(\frac{2}{5}\right)}^{-4}\times {\left(\frac{5}{4}\right)}^{-4}$

If the value of ${\left(\frac{7}{3}\right)}^{-3} \times {\left(\frac{9}{7}\right)}^{-2}\times \left(\frac{3}{7}\right)$ is of the form $\frac{1}{k}$, then find the value of $k$.

Evaluate ${\left(\frac{9}{10}\right)}^{-4} ÷ {\left(\frac{9}{10}\right)}^{-6}$

Evaluate ${\left(\frac{-1}{4}\right)}^{-3} ÷ {\left(\frac{-1}{4}\right)}^{-5}$

Evaluate $\left(3^{-7}÷3^{-10}\right) \times 3^{-3}$

Evaluate ${\left[{\left(\frac{3}{2}\right)}^2\right]}^{-2}$