4 x 18 5x 2 July 8, 2019 16 32 64 128 2 4 x )= 18 5x 20 5x 4 4x 18 2x 7 180 5x 4 4x 18 2x 7 X 5x 4 18 2x 4 x 5 1/2 4 x 18 4 x 18 x 25
