Final answer:
Asphalt mix for a project is typically measured in tons, which is the most appropriate unit for large-scale projects, although square yards or pounds could be used for area coverage or smaller quantities respectively.
Step-by-step explanation:
The units in which asphalt mix might be measured when performing grading on a project are typically tons, square yards, or pounds. These units are relevant for bulk materials used in construction and landscaping. When considering these options, the most appropriate unit for measuring an asphalt mix for a project would be tons because asphalt is typically bought and sold by weight for large-scale projects. Square yards would be appropriate if we are considering the surface area to cover with asphalt, while pounds might be used for smaller quantities or more precise measurements.