X 3 4 9 July 8, 2019 16 32 64 128 X 3 4 9 brain test X 3 4 9 8 X 3 4 9 2 X 3 4 9 20 X 3 4 9x X 4 3 9x 36 3 x 4 )= 90 3 x 4 9 12 3 x 4 9 2x 1 3 x 4 9 5 3 x 4 99 X 3 9x 4 0 3 x 4 9 10 X 1 3 4 9 626 x 3 4 9