IDNStudy.com, kung saan nagtatagpo ang mga tanong at sagot. Magtanong at makakuha ng detalyadong sagot mula sa aming komunidad ng mga eksperto na may kaalaman.
Answer:
Bartering
Explanation:
Before money existed, people used other systems to perform exchanges. Bartering involves a direct trade for goods and services. Bartering also has an advantage because even people without money can get something they need. Bartering might involve trading a service for an item