6-81. Jeremy and Josue have each sketched three x-tiles on their papers. Jeremy has labeled each tile with an x. "There are three x-tiles, each with dimensions 1 by x, so the total area is 3x square units," he said. Josue labeled the dimensions (length and width) of each tile. His sketch shows six x- lengths. A. Why do the two sketches each show a different number of x labels on the shapes?

B. When tiles are named by their area, they are named in square units. For example, the x-by-x tile (large square) is a shape that measures x square units of area, so we call it an x-tile. What do the six x's on Josue's sketch measure? Are they measures of square units?