Michelle wants to determine the height of the flag pole outside of her school. She places a meter stick next to the flag pole and measures the shadow of the meter stick and the flag pole. If the meter stick has a shadow of 160 centimeters and the flag pole has a shadow of 41.6 meters, then how tall is the flag pole?

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