passenger front brakes grind while stopping and driving. what do i do?

You need to have a complete brake inspection done immediately ! The grinding noise is likely coming from the brake pad backing plate rubbing against the brake rotor. If this is happening then the rotor is likely defective . If you continue to drive it then the caliper will become so hot that the brake fluid will boil, then you will likely ruin the brake caliper and brake hose. The longer you drive it the more dangerous it is and the more money it will likely cost you. Best of luck to you Chuck