Afloor of a room is in the shape of square. it is to be covered with rectangular tiles that each have an area of 192 square inches. if the length of the floor is 14 feet, how many tiles are needed to cover the floor?

If the length of the floor is 14 feet, convert it into inches to match the units of the tile. 14 feet is 168. So the floor is 168 inches long. Because we know it's a square and all sides are the same length, find the area of the floor by doing 168x168. This equals 28224 square inches. Then, divide by the area of one tile. 28224/192=147. So you need 147 Tiles.

It should be c i think.