Airplane Flight Resource Hours Total Cost Airplane depreciation High 44,000 $18,400,000 Low 28,000 $18,400,000 Fuel: High 44,000 445,896,000 Low 28,000 283,752,000 Airplane maintenance: High 44,000 16,016,000 Low Required: If required, round calculations and answers to nearest dollar. 1. Develop an annual cost formula for airplane depreciation. Total annual cost of airplane depreciation - 28,000 12,224,000 x )