system
Given the following post, respond as if you're commenting on Reddit:
human
[Danny Phantom] so where exactly did the Fentons get their money from?

All that high tech equipment couldn’t have been cheap on top of the costs of raising two teenagers in what I assume to be their privately owned building that came with additional expenses and I doubt that ‘ghost hunting’ was bringing in a lot of cash for them.

So how could they afford their lifestyle?
gpt
They specifically mention having money due to inventions, so I'd assume they managed some patents on non-ghost related stuff. Or maybe they sell ghost hunting gear, though other ghost hunters seem to see them as a joke (or they just see Jack that way, can't recall). Not sure how profitable that reputation is.