How much cost to replace rear disc brakes?

Car is Pontiac G6 and was told by people change oil it needed rear pads. Only has 50,000 miles and I am not origional owner. I want to take to get brakes. How much should I expect to pay. I live in South FloridaHow much cost to replace rear disc brakes?if you did it yourself the best pads metallics life time would be 30 dollars a set. if the rotors needed replacing another 60 .now the shop charges 40 to 60 an hour... http://www.goodheartwillcox.com/download

read this .. buy the tools and you will save big time.. it will take you a hour each wheel.. because its your first time.. buy a clamp at sears and a set of combination wrenches also a jack kit wich includes a seat a 3 ton jack and jack stands and other items you can buy all this and gain experience the job at thee shop will cost about 240 to 300 a guess okHow much cost to replace rear disc brakes?may cost 200 if u take it to a shop 20 if u do it your selfHow much cost to replace rear disc brakes?disk brakes are about 40 to 50 depending on place.

if you got to autozone they have some with life time warrantys and will be free replacements as long as you own your car.