Ollie used 276 bricks to make 6 fence columns. he used an equal number of bricks to make each column. how many bricks did he use to make each column? a) 44 b) 46 c) 48 d) 52

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