What is the domain of the function represented by this graph? Need help ASAP !! A: x ≥ 4
B: all real numbers
C: -2 ≤ x ≤ 2
D: x ≤ 0

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?