How can you express the depth of a CD holder if the depth is given as 2 - x?

The depth of a CD holder, represented as (2 - x), can be correctly expressed as a dimension of length. In geometry and measurements, dimensions such as length, width, and depth are used to describe the size and volume of an object. When depth is expressed in the form of an equation like (2 - x), it indicates that the depth is a linear measurement that can vary based on the value of (x). Thus, it serves as a dimension that describes one aspect of the object's size.

Choosing this representation emphasizes that depth is indeed a vital measurement, one that can change depending on the context or other variables involved. This understanding also aligns with how we interpret the physical properties of objects in three-dimensional space.