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High-Low Method, Cost Formulas During the past yeac, the high and low use of three different resources for Fly High Arlines occurred in July and April. The resources are airplane depreciation, fuel, and airplane maintenance. The number of airplane fight hours is the driver. The total costs of the three resources and the related number of airplane fight hours are as foliows: Required: Use the high-low method to answer the following questions. If an answer is zero, enter " 0 ", If required, round your answers to nearest dollar. 1. What is the variable rate for airplane depreciation? per fight hour What is the fixed cost for airplane depreciation? Total cost of airplane depreciation = 5 3. What is the variable rate for fuel? per fight hour What is the fixed cost for fuel? 4. What is the cost formula for fuel? Total cost of fuel =5 5. What is the variable rate for almplane maintenance? per fight hour What is the fixed cost for airplane maintenance? 6. What is the cost formula for airplane maintenance? Total cost of airalane maintenance =$ +(s)x ) ) 7. Using the three cost formulas that you developed, predict the cost of each resource in a month with 36,000 airplane flight hours. (Note: Do not round intermediate calculations.)