C. They made it easier to perform calculations.
Answer:
Tierra, en economía, es el concepto que abarca a todos los recursos naturales cuyo suministro está inherentemente fijado (es decir, no cambia respondiendo a las variaciones de sus precios en el mercado).
Explanation:
I don't know if this will help but maybe because no rights of citizenship were extended to African Americans and any successes they achieved was only permitted within a circumstated area.....Hope that helps
Either of the two lines if latitude and longitude whose intersection determines the geographical point of a place.
