50 POINTS A statue is in the shape of a triangular pyramid. The area of the base of the statue is 18 square inches and it has a height of 15 inches. What is the volume of the statue in cubic inches? 60 in.3 90 in.3 270 in.3 540 in.3? Thanks!~

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