The formula for finding the area of a rectangle is A=LW\displaystyle {A}={L}{W} .

If the units for length are in feet and the units for width are in feet, what are the units for A?

Solve this formula for L.
L =  

If the length of a rectangle is 16 feet and the width is 9 inches, what is the area of the rectangle in units of square feet?
  ft2