It would depend on what you mean by "fixed." If they just need to be turned, that should be pretty cheap - especially if you have a friend with an auto shop or can use the Auto Hobby shop at a military base. If you say 'fix' but mean 'replace,' then you're talking more money - how much would depend on what type of rotor you want (OEM, Slotted/Drilled, Racing, etc).
$360 @ Graham Tire for rear brakes and rotors
The 2006 Dodge Charger has 24 valves.
The 2006 Dodge Charger has a V6 engine.
The 2006 Dodge Charger is a gas-powered vehicle.
The 2006 Dodge Charger has a 5-speed shiftable automatic.
The height of the 2006 Dodge Charger is 4 ft. 10.2 in. (58.2 in.).
The curb weight of the 2006 Dodge Charger is 3727 lbs..
The 2006 Dodge Charger has single overhead cam (SOHC).
The 2006 Dodge Charger has a drag coefficient of 0.33 Cd.
The 2006 Dodge Charger's turning circle is 38.9 ft..
The 2006 Dodge Charger runs on regular unleaded.
The 2006 Dodge Charger is 16 ft. 8.1 in. (200.1 in.) long.