3 4 x 18 1 July 8, 2019 16 32 64 128 3 4 x 17 18 3 x 4 )= 18 2x 11 3 3 4 6 x 13 18 y 3 18 x 4 18 4 x 3 )+ 18 6 x 1 )- 2x 18 7x 10 3 x 4 18 x 1 5 3 4 3 4 (- x 12 ) 18 3 4 x 16 18 3 4 4x 16 )- 12 =- 18 1 3 4 x 18 lvl 1 3 4 x 18 lvl weight per foot 3 4x 18 1 2x 5 3 4x 18 1 2x 18 3 4 x 22 1 2