6 4 5 4 9 July 8, 2019 16 32 64 128 4 6 5 4 x 9 6 4 5 9 height difference 6 5 4 9 2 6 4 5 9 2 3 6 5 4 9 as a fraction 5 1 6 4 4 9 Нсо 4 6 )- 8 5 9 4 5 4 2x )+ 6 9x 4 4 4 5 =- 6 90
