econ monopoly and deadweight

Suppose that a firm has a monopoly on a good with the following demand schedule: Quantity Price 0 $10 1 $9 2 $8 3 $7 4 $6 5 $5 6 $4 7 $3 8 $2 9 $1 10 $0 a. What price and quantity will the monopolist produce at if the marginal cost is a constant $4? b. Calculate the deadweight loss from having the monopolist produce, rather than a perfect competitor.