Does anyone know algebra? if so plz asap

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?

Two numbers have a sum of -19. one number is x. what expression represents the other number?

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply