Using laws of exponents, compute each of the following and answer in exponential form:

${\left\{{\left(\frac{6}{4}\right)}^3\right\}}^4$

Using laws of exponents, compute each of the following and answer in exponential form:

${\left\{{\left(\frac{5}{9}\right)}^3\right\}}^6$

Using laws of exponents, compute each of the following and answer in exponential form:

${\left\{{\left(\frac{-1}{3}\right)}^7\right\}}^9$

Using laws of exponents, compute each of the following and answer in exponential form:

${\left\{{\left(\frac{-3}{5}\right)}^5\right\}}^5$

Simplify and answer each of the following in exponential form:

${\left(\frac{-3}{31}\right)}^5\times {\left(\frac{{\displaystyle -3}}{{\displaystyle 31}}\right)}^4÷{\left(\frac{{\displaystyle -3}}{{\displaystyle 31}}\right)}^8$

Simplify and answer each of the following in exponential form:

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

Simplify and answer each of the following in exponential form:

$\left(5^{17}\times 5^{19}\right)÷{\left(5\right)}^{37}$

Simplify and answer each of the following in exponential form:

$\left\{{\left(\frac{-2}{5}\right)}^7÷{\left(\frac{-2}{5}\right)}^3\right\}\times {\left(\frac{-2}{5}\right)}^2$

Simplify each of the following and express each as a rational number:

${\left(\frac{2}{3}\right)}^4\times {\left(\frac{3}{4}\right)}^2$