Samantha's living room is 6 meters wide and 7 meters long. She wants to put a border around the top of the room. The cost of the border is $4.00 per meter. How much will it cost to buy enough of the border to go around the room?
The perimeter of the room (the distance around the room) is:
2(6) + 2(7) = 12 + 14 = 26 meters
So Samantha needs 26 meters of border. The cost is $4.00 per meter, so the total cost will be:
26 × $4.00 = $104.00