Price Quantity demanded (dollars per sweatshirt) (sweatshirts per week) 0 100 20 80 40 60 60 40 80 20 100 0 Sara is a dot.com entrepreneur who sells sweatshirts. She pays $1,000 a week for her Web server and Internet connection. She pays the firm that makes the sweatshirts $20 a sweatshirt. Sara has no other costs. The table sets out the demand schedule for Sara's sweatshirts. Other firms enter the Web sweatshirt business and compete with Sara. In the long run, the demand for Sara's sweatshirts and her economic profit