Welcome to Pond Boss!!
1) Yes, there should be some small bass in there if there's larger bass, which is based on the assumption that you have some adult bass that breed.
2) Bass do eat floating feed, but it takes some time and consistent effort to get them on it.
3) "Perch" is really Bluegill. It would be odd to not have any bluegill in the pond. Bluegill take to feed very easily, so if you feed at the same spot consistently, you should eventually see some bluegill if they are in the pond.
Keep observing and document what you see on the road to getting an understanding of what you've got.
If the pond had been unmanaged for some time, you may be out of balance.
If you can afford it, and electrofishing survey would be usefully to jump start your 'knowledge' of what's in the pond.
