Andy runs 437.5 meters in 62.5 seconds. If Andy runs at a constant speed, how far does he run in one second?

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?

Im literally having a mental breakdown

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square