(Three-fourths) cubed

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?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie