So I have two weird noises
So to begin I just purchased a 2014 Chevy Cruise LT with 81k miles and I didn’t notice these noises until I purchased the vehicle of the lot and had it for a few days.

1) when I turn my vehicle on my serpentine belt is quite, but after I start driving and the belt warms up that’s when, if I’m at a complete stop, the belt is squeaky but it does go away if I let it sit on for a little bit but goes back to being squeaky when I get back to driving. I assume the belt just needs changed.

2) every time I start my vehicle up and drive a few feet, it sounds like my front bumper is always scrapping/grinding against the road but this sound only occurs once per vehicle start. So I’m thinking it has to do with the brakes grinding but it’s just weird when it only makes that grinding sound once and then is fine.

Any help would be great thanks!