A state college charges $8,792 tuition per year for Texas residents and $13,134 tuition per year for out-of-state students. Over 4 years, how much more would an out-of-state student pay?

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?