Suppose for a firm X-Mart, labor is the only input variable, and the wage rate (variable cost/unit) is constant, which is $25 and the fixed cost for capital/unit is $100.

Capital(units)	Labor(no. of workers)	Quantity of output, Q(units)	Price/unit
2	0	0	10
2	2	20	10
2	3	40	10
2	4	60	10
2	5	90	10
2	6	130	10
2	9	170	10
2	10	180	10
2	24	200	10
2	30	210	10
2	35	220	10

Answer the following questions

Under what market structure is X-Mart operating? Explain your reasoning.

What is the sunk cost for X-Mart if it does not go into production at all?

When do the diminishing marginal returns start, i.e., after producing how many units of output does the firm experience diminishing marginal return? Explain your reasoning.

How many units X-Mart should produce to maximize its profit?

Calculate the profit at the profit-maximized level of production.

Should the firm continue to produce 20 units of output in the short run?

Up to 130 units of output, what type of scale exists? Explain your reasoning.

What does the demand curve for X-Mart look you think? What does it tell you about the elasticity of the demand for the firm? Explain your reasoning briefly.