Enzo and beatriz are playing at thier local arcade incredibly enzo wins 5 tickets form every game. And beatriz wins 11 thickets form every game when they stop playing they both had the same numder of tickets what is the minimum numder of games enzo could have played

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