The postage required to mail a box depends on its weight

Question

What’s the most appropriate name for the function?

Box(postage), or b(p)
Weight(postage), or w(p)
Postage(box), or p(b(
Postage(weight), or p(w)

Answer 1

The most appropriate name for the function describing the relationship between postage and weight is "Postage(weight)", or p(w).

This name indicates that the postage (the output) is a function of the weight (the input), which aligns with the description that the postage required to mail a box depends on its weight.