Pls help me with in this i just want the 3 and 4th one...​

3. The special concept reminded by the phrase "Exchanging Butter Cake for Dates" is:

Trade by barter.

4. The need fulfilled by this business is people's demand for Cake.

The want fulfilled by this business is the organization's supply of dates for its production of cake.

Explanation:

A trade by barter involves the exchange of one good or service by one trading party for another good or service from the coincidental trading party without the use of money or monetary mediums.  Trade by barter enables people without money to fulfill their needs.  The major problem with trade by barter is that there must be coincidence of wants by the two trading partners.  This is not always feasible.

answer; private store;