In most states, its generally $5 per mile over the speed limit... what does change from state to state is the amount of tax that is placed upon that amount and/or the flat rate for the type of ticket you received.
Your ticket will probably be about $120 to $150... but that is just a guess and I could be entirely wrong - as I live in California and have never personally been ticketed for speeding in Ohio.
Your points, car insurance and traffic school eligibility will also very from state to state...
As long as you are within legal driving age, your age should not be related to the the traffic ticket fine - only to your car insurance payments.
Although I have basically said a lot of "nothing" - I hope this can help