Demand is to quantity demanded as supply is to what?

Demand is related to the quantity of a product that consumers want to buy at a certain price, while supply is related to the quantity that producers are willing to sell at that same price. So, just as demand refers to the desire and ability of consumers to purchase, supply refers to the desire and ability of producers to offer goods for sale. For example, if a farmer has apples to sell, the supply would be how many apples the farmer is willing to sell at different prices. Therefore, you can say that demand is to quantity demanded as supply is to quantity supplied. This relationship helps us understand how markets work and how prices are determined based on what consumers want and what producers can provide.