Help pls ill give out to a real answer

The variable in a relation who’s value depends on the value of the independent variable is called what?

The volume of a cube is 8 in to the 3rd power. how long is each side?

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?