PLEASE HELP MATH Find each f(c) using synthetic substitution
f(x) =5x5 + 10x4 + 3x3 + 8x2 – 6x – 3; c = 3
(SHOW WORK)

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