Demand<span> refers to how much (quantity) of a product or service is desired by buyers. The quantity demanded is the amount of a product people are willing to buy at a certain price; the relationship between price and quantity demanded is known as the demand relationship. </span>Supply<span> represents how much the market can offer. The quantity supplied refers to the amount of a certain good producers are willing to supply when receiving a certain price. so this is controlled by the produces and consumers</span><span>
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Answer: Roman roads, and Roman arches
Explanation:
To fight for their side and to have more people fighting side be side with them