How much and what do they take from your paycheck in florida?

I'm about to start working 30 hrs a week at $13 an hour. I'm also going to be moving out (of my moms house for college) 4 months after i get my job. Anyone know what they deduct from your paycheck and how much?
I've heard some people say that you only end up with 75% of your real pay check but then i heard other people say you get to keep 80%, anyone know which one it is?
Does the deductions go up once i move out?
Thanks!
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Go to the website www.paycheckcity.com and put in your earnings #'s
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Go to paycheck city and that will give you a good idea. Lucky for you Florida does not have state income taxes.