British Columbia Cruiseline offers nightly dinner cruises off the coast of Nanaimo and Victoria. Dinner cruise tickets sell for $$50$ per passenger. British Columbia's

variable cost of providing the dinner is $$20$ per passenger, and the fixed cost of operating the vessels $($depreciation$,$ salaries, docking fees, and other expenses$)$ is

$$210,000$ per month. The company's relevant range extends to $15,000$ monthly passengers. Draw a graph of British Columbia's CVP relationships. Include the sales

revenue line, the fixed expense line, the total expense line, and the break$-$even point. Determine the income area and the loss area.