There are many French-speaking countries in the world. Together they are known as Francophonie - le monde francophone. Anyone living in a French-speaking country or speaking French as a first language can be considered as part of the Francophonie.
It is parlez because since parlez means speak which is a verb so u just conjugate it into the sentence so u would get "Vous parlez francias" which means You speak french
Marchand:si je baisse le prix je ne gagne plus rien! Client:c'est quand même exagérer! Marchand:Si vous n'êtes pas content vous n'avez qu'à y aller à votre boutique. Client:j'y vais de se pas mon bon monsieur.