if you are on a dependent visa, then you can pretty much do whatever you want.

tutoring jobs in a centre would pay $15-20k/month (i think, it's been YEARS since i did it).

tutoring privately could be $350-400/hour (but you pay for the travel between students and you provide everything). there is also no sick pay, holiday pay etc.

obviously, the more experience you have the higher the salary you can command.