A rectangular section of granite is being cut so that the length is 3 times the width . The perimeter of the section must be less than 320 inches

Somone me i want to know what 18 hours out of 24 hours in a fraction

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

3/4 = c/36 i need with this fraction proble.