If the car hasn't been used for a long period of time calipers usually lock up.Try to remove the calipers and remove the cylinder,to remove the water within the cylinders.It would be best if you could remove the old brake fluid and replace it with new one.it would take time doing this but it's the best solution to your problem.
Possibly bad wheel bearing.
It would depend if your car has 4 wheel disc brake or only the front (2) has disc brakes. You would have one rotor for each wheel with disc brakes.
Possible worn out brakes
the same way as you would on a RWD or AWD car. but more information is needed to answer such a question. what part of the brakes????
The wheel cylinders will be associated with the rear drum brakes. Drum brakes use a wheel cylinder to activate the brakes - push the shoes out against the drum. Disc brakes use a caliper unit to push a piston out and squish the brake pads against the rotor. The front disc brake pads are pressed against the rotor by pistons inside the calipers to slow the vehicle. Both are hydraulically controlled.
Inspect your calipers make sure pistons are working
There are many brake lines especially if the vehicle has ABS brakes. The brake lines would run from the master cylinder to the ABS module, from there one to each wheel for 4 wheel disc brakes or for rear drum brakes, one to each front wheel and one to both rear wheels.
Brakes, wheel bearing.
caliper froze, brake line collapse, or wheel bearing out.
Depends on if you have 4 wheel disc brakes. If ya do.. its rotors, if not its drums. I would assume, however, since every cutlass I;ve owned has had 4 wheel disc brakes, that yours would too. Look through the holes in your wheels, and see if there's a metal disc or not, or if you want to be sure, see if it looks the same as the front.
The cost for the front and back brakes would be about $600 dollars.
rear brakes need adjustment srar wheel froozen