Demand and Supply Curves. The following relations describe monthly demand and supply relations for dry cleaning services in the metropolitan area QD = 500,000 — 50,000P (Demand) QS = -100,000 + 100,000P (Supply) where Q is quantity measured by the number of items dry-cleaned per month and P is average price in dollars. A. At what average price level would demand equal zero? B. At what average price level would supply equal zero? C. Calculate the equilibrium price-output combination.

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Demand and Supply Curves. The following relations describe monthly demand and supply relations for dry cleaning services in the metropolitan area

QD = 500,000 — 50,000P (Demand)

QS = -100,000 + 100,000P (Supply)

where Q is quantity measured by the number of items dry-cleaned per month and P is average price in dollars.

A. At what average price level would demand equal zero?

B. At what average price level would supply equal zero?

C. Calculate the equilibrium price-output combination.

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