Can you help me find the following info below on American airline and Samsung investors page. I have been searching but cannot seems to find the info being asked. the most recent annual filings forAmerican Airlines andSamsung Electronics in Form 10-K to answer the questions below:

• Determine the following for each company:
• A product description
• A product price
• A list of costs that are required to produce and sell the product selected in the product description as listed in the annual report on SEC Form 10-K
• Whether the costs identified above are fixed costs or variable costs.
• Which of the products do you believe has the largest markup on variable cost?
• While Samsung is a hugely popular brand, holding its shares has never been easy for U.S. investors. How can an investor buy Samsung stock in the US?