How many families live in this duplex?
Two families live in this duplex.
One family lives on the right side and the another family lives on the left side.
What is a condo?
Condo is short for condominium.
Instead of renting an apartment, many people buy a condominium.
What are these?
They are mobile homes.
These mobile homes are in a mobile home park.
Mobile homes can be moved.