How did you get that answer tho? Like 3/4/w = what over what??

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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