$10-$15 an hour.
$20.00 a hour if the kid rlly needs help
if you can do more than 1 at a time. i would suggest making it a reasonable price, say like $5 an hour. i saw a guy do this. he even advertised to tutor at the community college. just remember summer is not really a great time to be tutoring.
tutors make a lot of money, so theres really no set rate. one of my close friends is graduating and we were talking about 10 bucks an hour to help me a little bit with some math. if tis more serious tutoring than that, some people will pay 30 bucks an hour, if not more. my mom made 50 per hr tutoring a like 7th grader in math i think last year. so ask around, figure between 20 and 40 for starters