Can someone plz help me

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

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?

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)