Response: "How much do you want to charge?"
There are no guidelines or rules on what tutors should charge. For each person who thinks your rates are expensive, there'll be a person who'll think you are cheap!
If you want to advertise at the schools, schools may want a criminal record check done.
If you are tutoring from home, you should check with your insurance broker to find out if your insurance will cover you with this as a home business (there may be an additional charge). If you tutor at a library or other public place/business, find out if they have a specific policy regarding tutoring.
The municipality may expect you to get a business license. CCRA is going to want to know about all your income as well.