Calculate the area of the shaded sector in square inches.

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?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Simplify using positive exponents only.