How much is 9.25 an hour annually?

Consider that a full time job is 40 hours a week. Typically, people will work around 50 weeks of the year.

So, before deductions, $7.50 x 40 x 50 = $15,000 a year.

If you're single, that puts you in the second tax bracket of 15% deductions, so you actually take home around $12,750.