I just had a 55000-mile service performed on a 2009 A4. The service writer said I need brakes front and rear with the rear more worn. She quoted me a price of 675 dollars for the rear brakes and rotors. Is that what I should expect to pay for that work? The 55000-mile service cost $479.00 for oil and spark plugs. If this is not the proper forum, would someone please direct me?

Thank you