7 5 x 9 July 8, 2019 16 32 64 128 7 5 x 9 6 7 5 x 90 7 5 x 9 2 7 5 x 9 10 7 5 x 9 4 7 5 x 9 3 7 5 x 9 8 7 5 х 9 5 7 x 9 )= 25 5 7 x 91 5/7 x = 98 5 7 x 9 20 5 7 х 91 16 7 5 x )= 9 7 1 5 x 9 10