A craftsperson must attach a lead strip around all four sides of a stained glass window that is 8 4/5 in. by
14 17/25 in. before it is installed. Find the length of lead stripping needed.

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters