1 2 7 40 July 8, 2019 16 32 64 128 1 2 3 7 40 5 1 2y )= 1 2 7 40y 7 1 2 of 400 7 1 2 x 40 7 1 2 of 4000 7 1 2 of 40000 7 1 2 of rs 40
