Its not uncommon for the brakes to make noise when driving , thats how most of the worlds brake pads let you know they need to be changed . They have built in tabs that make the squeek when it comes in contact with the rotor .
Other noises while driving can be halfshafts , unit bearings , tires and wheels , etc .
It may or may not cost a lot . If your mechanically inclined , look at the car . Otherwise your going to have to take it in for service .