A market with demand Q = 10 - p is supplied by a monopoly with costs C(Q) = 6 + 2Q. Calculate the equilibrium price, output, and monopoly profits. What would be the equilibrium if the market were supplied competitively by firms, and each firm had the same costs? Illustrate on a diagram, showing the monopoly and competitive outcomes (price and quantity), monopoly deadweight loss, and monopoly profit.