Preparing for an In-person Meeting with an Agency

Hi everyone! 27M and just decided to try out modeling with close to no experience. I recently took digitals and sent them off to agencies. I received a couple of good responses and one rejection.

I will be having my first in-person meeting with an agency soon. The agency states that they want to introduce themselves properly, give guidance on modeling career path, and finalize my profile.

They also mentioned that they are open to signing models, with contract options, benefits, and support (this is a bit confusing to me because I thought that is what agencies do?). It is a reputable agency with a large following on social media.

I have a few questions for those who have experience:

1. What to wear to an agency meeting? -The internet says dress similarly as you would for digitals, but I think it would be awkward if I showed up in a tank considering this isn’t a casting call and they did not mention anything about taking photos.
2. What to expect from the meeting? Is there anything I should be prepared for? How should I prepare?
3. What questions should I ask the agency?
4. The agency regularly posts modeling gig opportunities publicly on their social media. But they also are a large agency with many models signed directly to them. I’m confused by this dynamic - if anyone with more experience understands please let me know!

Any generic advice would be greatly appreciated. Thank you so much!