4 7 * 1 5 * 7 9 July 8, 2019 16 32 64 128 4 7 x 1 5 x 7 9 4 7 times 1 5 times 7 9 4 1 x 2 9 x 7 5 7 98 4 7 x 1 5 x 7 9 as a fraction 4 7 4x 3 )- 1 7 9x 5 9x 0 7 4 5x 1 5 7 A 1 4 5 7 b 1 7 9 12 find a ∩ b
