5 5 7 6 4 July 8, 2019 16 32 64 128 5 7 6 4 height difference 5 7 6 4 3 5 7 6 4 8 5 7 6 4 2 4 5 4 5 7 6 divided by X 5 6 5 7 4 9 5 5 6 х 2 4 7 5 6 4x 5 )= 3x 7