## Calculus (3rd Edition)

$g(t)= 12 t+9$, $f(t) = t^4$ (other answers are possible.)
We can let: $g(t)= 12 t+9$ and $f(t) = t^4$ We then get the composite function: $$f(g(t))=(12 t+9)^{4}$$ This is the desired result.