How is relative location often described?

Using complete sentences, describe the central economic problem facing all humans. why does this require people to make choices? how can this result in opportunity costs?

Afootpath is to be constructed in a park in the shape of a parallelogram. when a coordinate plane is laid over a map of the park, the vertices of the footpath are (-4,2) (8,2) (11,7) and (-1,7). what is the perimeter of this path

What is meant by the term relative location?