Solve clearly

The inverse demand curve a monopoly faces is p = 20Q -0.5 What is the firm's marginal revenue curve? Marginal revenue (MR) is MR = .(Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a superscript can be created with the ^ character.) The firm's cost curve is C(Q) = 4Q. What is the profit-maximizing solution? (Round all numeric to two decimal places.) The profit-maximizing quantity is The profit-maximizing price is $ What is the firm's economic profit? The firm earns a profit of $ . (Round your response to two decimal places.)In a labor-market separating equilibrium with high-skill and low-skill workers and where a costly educational degree is used solely as a signal device, we can say that O A. education is socially inefficient because it is costly and provides no useful skills to the worker. O B. education is privately inefficient for high-skill workers. O C. education is socially efficient. O D. education is privately useful for low-skill workers only