For the function $$f(x)= \frac{3 x }{(7 x - 3) (5 x - 4)} ,$$
what are the vertical asymptotes? Give a list of the $x$-values of the asymptotes separated by commas.

$x =$
What is the horizontal asymptote?

$y =$
What are the $x$ -intercepts? Give a list of the $x$-values of the $x$ intercepts separated by commas.

$x =$
What is the $y$ -intercept?

$y =$