Jared sells square frames of various sizes made of wood. to find the area of a frame, jared uses the formula a = s^2 - (s - 2w)^2, where s is the length of a side of the frame and w is the width of the frame.
part a.)what does each term in the formula represent?
part b.) find the area of a frame that measures 20 inches on each side and has a width of 3 inches
part c.) jared charges 18 cents per square inch for his frames. how much will he charge for a frame that measures 16 inches on each side and has a width of 2 inches?