Evaluate the numerical expression. 4 x [(24 - 6) - (6 + 2)]

If the measure of xyz is 81 what is the measure of yz

Solve the system of equations. y= 2x y= x^2 - 15

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?