Exponents

What is the value of $x$ in the equation?
$7\times {10}^x=7000$

What is the value of $x$ in the equation?
$56\times {10}^x=5,600$

If ${\left(-x\right)}^3=-64$ then the value of $x$ is

If $2^m=256$, then value of $m$ is

The negative of ${\left(\frac{-2}{3}\right)}^3$ is

${\left(-7\right)}^2\times {\left(-1\right)}^{203}$ is equal to

The expression ${\left(pqr\right)}^3$ is equal to

$a\times a\times a\times b\times b\times b\times b\times b$ is equal to

Express $108\times 192$ as a product of prime factors in the exponential form.

The multiplicative inverse of ${\left(-\frac{7}{5}\right)}^2$ is