What do we call the exchange of goods and services?

transaction of course......................................

Transaction is the correct answer 

thank you 

ANSWER1 IS CORRECT a  TRANSACTION

1-A transaction is the correct answer 

The exchange of goods and services is called as "transaction"

exchange of goods and services denotes doing a transction of same

Exchange of goods and services is simply called Trade By batter

It is called Barter system.

1. A transaction ........................................................................................................................