En una carrera Pedro recorrió 55 km en 3 días el segundo día recorre una tercera parte del primer día el tercer día recorrió 15 kilómetros menos que el primer día Cuántos kilómetros recorrió cada día​

i don't get what you mean

explanation:

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !

answer; code of federal regulations;