Okay so this is all the information given don't i need more?

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?

What is x3+3x2−16x−48 divided by x−1?

Solving algebraic equations 2m+3=11