If you are trying to reduce echoes in a room, what should you add to the room?

Answer:Apply acoustic foam to the walls and ceilings

Add an area rug to the floor

Cover the Floor. Carpets and rugs do more than provide soft padding for your feet ...

Cover the Walls and Windows. Wall and window coverings reduce the amount of sound reflecting off window glass and hard wall surfaces ...

Fill Rooms with Furnishings ...