Power of a power with integer bases and negative powers

Interactive practice questions

Simplify the following into the form $a^b$ab:

$\left(6^7\right)^{-3}$(67)3

Easy
Less than a minute
Simplify the following into the form $a^b$ab:
$\left(6^{-5}\right)^4$(65)4
Evaluate $\left(5^{-9}\right)^0$(59)0.
Evaluate $\left(7^0\right)^{-6}$(70)6.