3 7 6 10 9 July 8, 2019 16 32 64 128 3 x 6 7 x 9 10 The average of 3 7 6 9 10 3 x 6 7 x 9 10 as a fraction 3 times 6/7 times 9/10 2 3 6 7-tetramethoxy-9 10-dimethylanthracene 2 3 6 7 tetrahydroxy 9 10 anthraquinone
