How can I reenter the U.S. with my EB-5 I-485 pending, AP approved, and an active F-1 visa?

You cannot maintain F-1 status while your I-485 is pending. An I-485 is an application to immigrate to the US (to get residency or a "green card") and F-1 student status is strictly non-immigrant (temporary). However, you are allowed to study while your I-485 is pending and can travel and work if you have advanced parole and a work permit.

You should use your advance parole document to enter the US while your I-485 is pending.

By filing I-485 you declared your intention to be a U.S. permanent resident. That intention is contrary to F-1 intention to maintain residence abroad and return abroad when studies are completed. You must travel on your advance parole.

You need to show the advance parole as you may be denied on the F-1 now that you have indicated immigrant intent with your I-485 filing.