heidytale19 heidytale19 12-12-2020 Mathematics contestada the area A, of a rectangle is 120x (exponent of 2)+78x-90 , and a length, l, of the rectangle is 12x=15. which of the following given width, W, of the rectangle? A. 9x+4 B. 10x - 19 C. 10x-6 D. 8x -6