A filing cabinet measures 5 ft high by 18 inches wide by 2 ft deep. What is the volume of the filing cabinet?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

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