Answer
$h^{-1}(t) = 9^{t}$
Work Step by Step
$h(t) = \log_9 t$
Let $h(t) = y$
$y = \log_9 t$
Swap the $t$ and $y$ variable to find the inverse:
$t = \log_9 y$
$y =9^{t}$
$h^{-1}(t) = 9^{t}$
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