What is the cost of 1 pound if oranges?

Simply 8x squared + 5(7x squared- x) - 2x =

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?

What is the sum of these mixed numbers 4 2/3+ 3 1/9