Please include a brief explanation as to why they are or are not state properties. I know that properties are quantities whose numerical values do not depend on the history of the system, but only on its current state. I just don't understand the reason why a coefficient would or wouldn't be a property for example.

4. Indicate whether the following quantities qualify as a state property or not: a) Coefficient of thermal expansion (a measure of how the volume/length of an object changes with changes in temperature). b) The mileage on a car