Find the following for the function $f(x)=\frac{6x5}{9x-4}.$

$($a$)$ f$(0)$

$($b$)f(1)$

$($c$)5(-1)$

$($d$)1(-x)$

$($a$)-f(x)$

$($f$)f(x3)$

$($g$)1(7x)$

$($h$)f(xh)$

$($a$)f(0)=$

$($Simplify your answer. Type an integer or a simplified fraction.$)$