7 5x10^6 July 8, 2019 16 32 64 128 7 5 x 10 6 5x10 7 )+( 1x10 6 5x10 7 x 3x10 6 6x10 7 5x10 5 6x10 7 5x10 4 7 x 10 6x 5 7 x 10 5 x 7 = 35 7 5 x 10