24. marbles a bag contains equal numbers of green
and blue marbles. you can divide all the green marbles
into groups of 12 and all the blue marbles into groups of
16.what is the least number of each color of marble
that can be in the bag?

show work

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