I have been stuck on number 4 for my homework assignment all week. I need help. I think I got the first part right where I'm supposed to graph it with the supply and demand curve. But I'm confused with the rest.

576 Economics and Public Policy: An Analytical Approach The change in producer surplus after the tariff is imposed is Show how you calculated this change: The effect on net social welfare (the inefficiency) of the tariff is Show how you calculated this change:b. If there is free trade and Panama imports bicycles for $100 each, determine the following: number of bicycles imported at $100 number of bicycles Panamanian consumers buy at $100 number of bicycles Panamanian producers produce at $100 Given the above answers, carefully explain what happens to Panamanian bicycle producers with free trade. Now carefully explain what happens to Panamanian bicycle consumers. c. Graph the market outcome in Panama if the Panamanian government imposes a tariff of $100 per bicycle: d. Determine the following: number of bicycles imported number of bicycles Panamanian consumers buy number of bicycles Panamanian producers produce the Panamanian government's revenue from the tariff The change in consumer surplus after the tariff is imposed is Show how you calculated this change:4. Suppose that Panama does not trade with the outside world. It has a competitive bicycle industry, described as follows: price quantity demanded quantity supplied $500 O 500 $400 100 400 $300 200 300 $200 300 200 $100 400 100 500 O a. Graph supply and demand and determine the equilibrium price and quantity. 6004 400 300- 200- 100+ 100 200 300 400 500