My daughter has a part time job and will have to file taxes this year. Does she need to do her income and college expenses here on mine, or do hers totally separately?

Your daughter will file a separate tax return of her own to report her income. If she still meets the requirements to be claimed by you, she can't claim herself and must indicate that she can be claimed by someone else on her tax return. 

If she can be claimed by someone else, she can make up to $6300 of W-2 income before being required to file a tax return. If her income is too low to be required to file but she had federal income tax withheld, she should file a return to get a refund. If she had more than $400 of 1099-MISC income or income not reported on a form, she must file a return to pay self employment taxes. 

Deduction and credits for qualified education expenses (tuition, fees and in some cases books and course related materials and equipment) are tied to dependency. Whoever claims the student as a dependent (student or someone else) on their tax return is the one who can claim qualified education expenses paid out of pocket or with loans for deduction or credit. It doesn't matter who actually paid the expenses. On the other hand, scholarships that paid non qualified expenses such as room and board must be entered on the student's tax return as income.