2 1 4 f 12 3 4 July 8, 2019 16 32 64 128 6 2 1 4 f )= 12 3 4 3 2 1 4 f )= 12 3 4 answer A 1 2 3 4 4 + 4 = 12 A 1 2 3 4 5 6
