Question

when there is an exchange of service, it is called​

Answer 1

Answer:

EXCHANGE OFFER

this is the service

Answer 2

Answer:

Barter is an act of trading goods or services between two or more parties without the use of money —or a monetary medium, such as a credit card. In essence, bartering involves the provision of one good or service by one party in return for another good or service from another party.