The best way to be sure about this is to ask your building supervisor, leasing agent, or whoever you signed your lease with. Simply email, or ask in person, "is this furniture included in the price of the apartment?"

the titanic was furnished in Liverpool

We have finally furnished the house.

The restaurant was very well furnished.

His home was furnished in what you would describe as a 1940's style.

The adverb form of "furnished" is "furnishedly."

The past participle of furnish is furnished.