Replying to Pot Selling/how much trouble

Alright so shit just hit the fan. We smoked at this girls house earlier on with about 6 people, we smoked in the garage and then went into the house. Once we go in the house the cops rolled up. My friend was not smart enough to hide his weed(alot). He got arrested for having a QP on him with a scale, also he had a fake id. I know he is fucked but just how fucked? (he is one of my best friends and he never deals with this much weed)