My neighborhood has a single street vendor who serves Chinese take-out, (call it Vendor A). The market for street food has the following demand and cost structure: Daily Market Demand: Q = 18-p: Marginal Cost: MC= 5 6 Daily entry.cost to set up a food cart F. a Suppose Vendor A is the only vendor in the market and entry by new firms is impossible in the long-run. What is the price-quantity equilibrium for this neighborhood market? Oa.p. - $9,0 =9 units Ob.p'$0.9' = 18 units Ocp'= $6.0' = 12 units Odp' = $ 12, Q' =6 units