Ann worked 20 hours and made $200. how much money does she make per hour?

What is the definition of exponential decay?

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?

Find the commission on a $590.00 sale if the commission is 15%.