What is the correct way to express the ratio of a medication if it contains 6 parts calcium carbonate and 2 parts magnesium oxide ​

Can (3,5 and square root 34) be sides on a right triangle?

Solve 3x-18=2y and 5x-6y=6 by elimination 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