Formats give bits their meaning - Online practice 1

Read before answering

Model image: width 4 pixels, height 3 pixels, one bit per pixel; 1 is black and 0 is white. Read each row left to right, then rows top to bottom. The first row is 1001; later rows are unspecified. Count pixel data only: no headers, metadata or compression. Sound instead uses samples over time, not pixel rows.