¿Cuánto año tené?
Here's a breakdown:
* ¿Cuánto? means "how much" or "how many"
* año means "year"
* tené is a shortened form of "tenés," the second-person singular present tense of the verb "tener" (to have).
So, the whole phrase literally translates to "How many years do you have?" which is a common way to ask someone's age in Spanish and Chavacano.
Other Chavacano dialects might have slight variations in the wording, but the meaning remains the same.