7 4 x 11 4 July 8, 2019 16 32 64 128 12 4 7 x 4 11 7 3 4 x 11 3 4 X 4 11 2 7 4 11 1 4 x 7 1 4 W (- 7 2 4 x 11 4 4 7 x 9 4 11 4 7 x 9 4 11 as a fraction 7 3 4 x 11 3 4 frame 11 1 4 x 7 1 4 wall register 11 3 4 x 7 3 4 vent cover X 4x 11 )- 4 x2 7 )= 49 11 1 4 x 7 1 4 ceiling vent 11 1 4 x 7 1 4 vent cover
