Assume the following information for a merchandising company: Number of units sold 20,000 Selling price per unit $ 30 Variable selling expense per unit $ 3 Variable administrative expense per unit $ 2 Fixed administrative expenses $ 50,000 Beginning merchandise inventory $ 24,000 Ending merchandise inventory $ 19,000 Merchandise purchases $ 340,000 What is the gross margin

Which of the statements best describes why the aggregate demand curve is downward sloping? an increase in the aggregate price level causes consumer and investment spending to fall, because consumer purchasing power decreases and money demand increases. as the aggregate price level increases, consumer expectations about the future change. as the aggregate price level decreases, the stock of existing physical capital increases. as a good's price increases, holding all else constant, the good's quantity demanded decreases.