do have a drop off fee? I'm renting from Cincinnati to drop off in midtown NYC

Call the Enterprise location you rented from in KY. If you need to go to NYC, you may be better off returning to KY and rebooking with Enterprise or someone else in a new booking. You may get overcharged (like $400-$500 on top of previous rental) if you just drive to NYC.

Depends on the distance best way to find out is by calling where you picked up or where your dropping off. If you told the location where your picking up from it will be included in your price

Yes. I believe it is 45 dollars.