Nellie's dining room is 3 meters wide and 3 meters long. Nellie wants to install wooden trim around the top of the room. The trim costs $10.00 per meter. How much will it cost Nellie to buy enough trim?
The perimeter of the room is:
2 x (length + width) = 2 x (3 + 3) = 12 meters
Therefore, Nellie needs to buy 12 meters of wooden trim.
At $10.00 per meter, the total cost for the trim is:
12 meters x $10.00/meter = $120.00
So, it will cost Nellie $120.00 to buy enough trim for the dining room.