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Practice Problem 2 Cost Behavior Poseidon Inc. offers scuba diving excursions. Consider the following costs of the company over the relevant range of 12,000 to 15,000 hours of operating time for its tour guides: 12.000 Hours of Operating Time 13,000 14,000 15,000 Total costs: Suit Rentals $ 30,000 $32,500 $35,000 $37,500 Boat Costs $171,000 $171,000 $171,000 $171,000 Snacks & Drinks $56,000 $62,000 $65,000 $71,000 Total costs $257,000 $265,500 $271,000 $279,500 Required: Determine whether each cost is fixed, variable, or mixed