Consider $$f(x) = \frac{x^3+ 9 x^2+ 8 x - 60 }{x^3 - 10 x^2 - 21 x+ 270 }$$
Give the root(s) of $f(x)$ as a comma-separated list:

Give the $x$ values where the graph of $f(x)$ has hole(s), as a comma-separated list:

Give the $x$ values where $f(x)$ has vertical asymptotes as a comma-separated list:

$f(x)$ has a horizontal asymptote at $y=$