Please help ! I gave you extra points you will get them when you answer and I will heart you ?

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?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

How do i solve uniform motion problems?