The art class is planning a mural on an outside wall. The model is a scale drawing that is 28 inches long and 11 inches wide. In this scale drawing every 2 inches represents 3 feet. What is area of the actual mural?

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