I found the extra pages in the Posts table of the database and removed them. Prior to that I installed the bo-classic plugin, but the pages didn’t show up in my pages list so the database was what I needed.
Thank you so much for your help! I was referencing the database because no pages existed with the titles to warrant the “-2” addition. And in menus, when I open Buddypress Directories, there are 3 Activity items and 3 Member directories with titles I used in previous installations(Members, Member Directory, Members Directory, etc.) I wanted to know where the plugin pulls the URLS from so I could remove all of the old entries. Using the BP Classic plugin won’t help since they’re all from the URL version of Buddypress. I also was confused about how I can set the sidebar on the Buddypress pages being that they are dynamically generated.
Any other ideas about where the plugin is getting the URLs from prior installations?