It basically means that the older and more famous a piece of art is, the more it will cost. However, the condition (as in is it falling apart or is it brand new looking) is a factor. That's basically what it means.
i really dont understand your question but wait1) if your question means what does value means?. it will be value is: the quality (positive or negative) that renders something desirable or...
the mean is the average of the numbers.It is one of several different ways of determining the average of a set of values. It is determined by adding the sum of all of the values, then dividing by the...