Which expression represents the area of a rectangle with a length of l and a width of w?

The area of a rectangle is calculated by multiplying its length by its width. Therefore, if the length of the rectangle is represented as "l" and its width as "w," the expression for the area is simply the product of these two dimensions, which is l × w. This formula applies universally to rectangles, illustrating that the area represents the total space contained within its boundaries.

Choosing other expressions does not yield the area. For instance, adding the length and width (l + w) merely gives the perimeter, which measures the distance around the rectangle but does not equate to area. Subtracting the width from the length (l - w) also does not relate to the area in any meaningful way, as it results in a difference rather than a measure of space. Finally, dividing the length by the width (l/w) would give a ratio that does not correspond to an area measurement; instead, it seems to imply a comparison of dimensions rather than a calculation of space. Therefore, the most accurate representation of the area of a rectangle is indeed l × w.