Learn French: Vous avez un très joli salon. - You have a very pretty living room.

Avez is the specific form of the verb avoir (to have) that matches vous (you). If you were saying 'we have', you would use nous avons, and for 'they have', it would be ils ont or elles ont.

How do you pronounce vous avez? Is the 's' silent?

Normally, the 's' at the end of vous is silent. But because avez starts with a vowel, the 's' connects to it and makes a 'z' sound. This connection is called a liaison, making the phrase sound like 'voo-zah-vay'.

Why does joli come before salon? I thought French adjectives go after the noun.

You are right that most French adjectives come after the noun! However, a small group of common, short adjectives describing Beauty, Age, Goodness, or Size (often remembered by the acronym BAGS) go right before the noun. Because joli (pretty) describes beauty, it goes in front of salon.

Could I say tu as instead of vous avez here?

Yes! If you are complimenting a friend, a family member, or someone your own age, you would say Tu as un très joli salon. You use Vous avez when speaking formally to an adult you do not know well, or when speaking to more than one person.