Does anybody know if it is possible to change Argentinian pesos to dólars or panamanian balboa in Panamá?
There should be places in the airport.
Also FYI panamanian balboas are literally just USD (they just call it a different name, it is literally US dollar bills)
BTW are payments mostly made with cash? Or a combination of cash and debit/credit card?
most stores take cards. Taxis will need cash.