Dual Enrollment Transfer Credits

Does anyone know if USC counts the letter grades of dual enrollment courses from community colleges or do they simply show you having taken the credit but no grade? Will I start out with a blank slate or will my previous courses’ GPA carry over?
I think Clemson accepts only the credits and doesn’t factor in letter grade, as long as you’re passing, but I haven’t been able to get specific information on South Carolina.

We recently visited and I had a conversation with a freshman about this. She said that her grades from her dual credit classes transferred to USC.

My USC senior D’s dual enrollment grades did transfer … She has a USC GPA and a cumulative GPA which includes those transfer credits.

@SwimMom87 @NJMOM3 thank you both!