Help on just these ol​

Which of the following statement about pascal's triangle are true?

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?

Combine the information in the problem and the chart using the average balance method to solve the problem.