### Instruction: If $f(x) = 5x-4$, what is $f(f(f(2)))$?### Response: I need to find the value of $f(x)$ when $x$ is replaced by $f(f(2))$.
To do that, I first need to find $f(2)$ and then $f(f(2))$.
So, $f(2) = 5(2) - 4 = 6$.
Then, $f(f(2)) = f(6) = 5(6) - 4 = 26$.
Finally, $f(f(f(2))) = f(26) = 5(26) - 4 = 126$.