Find the perimeter of the figure pictured below.

[Graphs generated by this script: initPicture(-6,18,-6,18);path([[0,0],[0,7.25],[4,7.25],[4,3.75],[7.5,3.75],[7.5,0],[0,0]]);text([0,3.625],'7.25 ft','left');text([2,7.25],'4 ft','above');text([7.5,1.875],'3.75 ft','right');text([3.75,0],'7.5 ft','below');]

Perimeter = $\displaystyle {f}{t}$