Jesse needs a carpet of size 12 square feet to cover her room. If her room is 2 feet long What is the width of her room?
1. We know that the area of a rectangle is length times width, so we can set up an equation to solve for width. 
2. We also know that the area of a square is length squared, so we can set up another equation to solve for length. 
3. We can then use the two equations to solve for width. 

Now let's plug in what we know: 

1. Area = lw 
2. Area = l^2 

3. lw = l^2 

4. w = l 

5. 12 = l^2 

6. l = 3.46 

7. w = 3.46 

So, the width of the room is 3.46 feet.