In contemporary English, 'the breadth of possibilities' and 'a breadth of possibilities' are often indistinguishable in meaning; thus, either one can be used. Exceptions to this general rule can be found, however. For example, where there is a well-defined 'breadth of possibilities' that one intends to draw attention to, the definite article ('the') is most proper. Where the 'breadth of possibilities' is general, undefined, or merely potential, the indefinite article ('a') is typically most expressive.
You cannot. Cubic inches are a measure of volume and, for most boxes, require three measures: length, breadth and height. Only two are given in the question. Furthermore, the measurement units are not given: are they inches, centimetres, or some other units?
measuring tape
None. Feet are an outdated unit of measurement and so could never be the most appropriate.
Pounds.
Level of measurement most inferential statistics rely upon is ratio.
The unit of measurement most useful for a baseball's weight is ounces.
A homestead area can be measured in many ways. The most common measurement would be in size, either in square miles or acreage. After that, population measurement would be the next most favored approach.
Most of the world uses the metric system for measurement.
The most common measurement for weight is kilograms (kg). That is the metric S.I. (systéme internationale d'unites) unit for weight.
A subjective measurement is something that is based on an opinion and is most often biased. The opposite would be an objective measurement which is quantifiable and based only on fact.
Normal people will use centimetres, but manufacturers and retailers will usually quote millimetres.