Is there a chance that they’ll be hiring 18 year olds that are still in high school?

I'm not 100% sure, but if they did you may need working papers from your school.

Check the information desk at the location.

Yes they will

I'm not sure about their employment requirements. If you call them and ask for human resources, they'll have a better answer.

I don't know the age requirements but i know supermarkets are always hiring

The best thing to do is to call first and see if they have any openings and if they say you have to come into the store I would suggest going in and checking with them

Yes

They might be