1. "Por qué": This means "why" in Spanish. It's used to ask for a reason or explanation.
2. "Tú tienes en amigos": This phrase is grammatically incorrect. "En" is not the correct preposition to use with "amigos."
Possible Correct Phrases:
* ¿Por qué tienes amigos? (Why do you have friends?)
* ¿Por qué tienes tantos amigos? (Why do you have so many friends?)
* ¿Por qué tienes a esos amigos? (Why do you have those friends?)
* ¿Por qué tienes amigos como ellos? (Why do you have friends like them?)
The correct phrase will depend on what you are trying to ask.