A local Dunkin’ Donuts shop reported that its sales have increased exactly 14% per year for the last 2 years. This year’s sales were $82,269. What were Dunkin' Donuts' sales 2 years ago? (Round each year’s sales to the nearest dollar.)

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