Math type question help

[King of Hokies]

Civil actually.....

And I'm not wrong. The reason why I'm right is, if you say I'm infinitely better than something that means you would have to show a formula that looks like this Z x infinity = $12.85. That's impossible to do if Z = 0, so technically you can't say that.

Oh, please. You just set up the problem in a way that it can't be solved. Just modify the problem with simple algebra to make a statement so it can be solved:
Ratio = (Competitors Price/My Price) = 12.85/0 = Infinity

You can google and find a lot of information on ratio comparisons if you like, so I'm not going to do it for you.