The Spix’s Macaw eats seeds, plants, fruits, and flowers. One of these birds ate the same amount of seeds each day for 5 days. On the 6th day, they ate 3 seeds. In total, they ate 68 seeds. How many did they eat each of the 5 days?

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