By college classes, do you mean AP courses? If so, then yes, those credits will be accepted by UGA. Take a look here to see which credits are offered:
https://reg.uga.edu/creditFromTesting/advancedPlacement/uga_ap_credit_equivalencies
As for transfer student admissions, I’m not quite sure. But according to this link (courtesy of the UGA Admissions Blog, which is a fantastic resource!), UGA won’t look at your high school materials, including SAT/ACT/GPA.
http://ugaadmissions.blogspot.com/p/admissions-deadlines.html