If a pharmacist has 30 fluid ounces of medicine an she puts 0.5 ounces in each bottle how much does she fill

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

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

20 ! brainliest ! add and simplify your answer.