Answer: A barter system is an old method of exchange. Th is system has been used for centuries and long before money was invented. People exchanged services and goods for other services and goods in return. ... The value of bartering items can be negotiated with the other party. And community is a group of people living in the same place or having a particular characteristic in common.
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Explanation:
D. Moors
The Moors community. They were Black Muslims of Northwest African and the Iberian Peninsula during the medieval era. This included present day Spain and Portugal as well as the Maghreb and western Africa, whose culture is often called Moorish.
What is the relationship between quantity supplied and price?
In general: Supply refers to a schedule of quantities that will be sold per unit of time at various prices. It refers to the entire supply curve. Quantity supplied refers to a specific amount that will be supplied per unit of time at a specific price. It refers to a point on a supply curve.
So D is the answer: They are related through demand.
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