X 9 8x 7 July 8, 2019 16 32 64 128 X 9 7 8x 1 X 3 8x 9 7x 4 X 9 8= 7 8x 9 2 x 7 )= 8x 5 7x 5 x 9 8x 0 9 x 8 =
