Good evening,

Please help me to solve the equations according to the screenshot.

Thank you!

Part 1 Suppose that Joe sells pork in a purely competitive market. The market price of pork is $4 per pound. Joe's marginal revenue from selling the 21st pound of pork would be Part 2 Answer the question on the basis Of the following Output data for a firm. Assume that the amounts Of all nonlabor resources are fixed. of Workers units of Output Diminishing marginal returns become evident with the addition of which worker? Part 3 The total revenue of a purely competitive firm from selling 50 units of output is $300. Based on this information, what is the unit price of the output?l