What is a3 of the arithmetic sequence for which a10=41 and a15=61?

Twelve friends shared 8 small pizza equally. how many pizzas did each person get?

The depreciation per unit for a company

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?