4 x 6 5 July 8, 2019 16 32 64 128 4 x 6 5 8 direct vent pipe 4 x 6 5 4 x 6 )+ 5 13 4 x 6 )= 56 4 x 6 5x 4 x 6 )+ 5 25 4 x 6 5 8 4 x 6 5 3 4 x 6 )- 5x - 1 4 x 6 )- 5x - 2 4 x 6 5 1 4 x 6 5 2 4 x 6 5 as a fraction 4 x 6 )- 5x - 3 4 x 5 6 2 2x 3
