EB7. 2.2 Case Airlines provides charter airline services. The fixed expenses to operate the company's aircraft are $377,300 in January and $378,880 in February. It costs Case Airlines $0.45 per mile in variable costs. In January, Case aircraft flew a total of 385,000 miles, and in February, Case aircraft flew a total of 296,000 miles. Using this information, answer the following: A. What were the total costs to operate the aircraft in January and February, respectively? B. What were the total costs per mile to operate the fleet in January and February, respectively? EB8.2.2 Suppose that a company has fixed costs of $11 per unit and variable costs $6 per unit when 11,000 units are produced. What are the fixed costs per unit when 20,000 units are produced? EB9. 2.3 The cost data for BC Billing Solutions for the year 2020 is as follows: Month Month January February March April May June July August September October November December Invoices Processed 12000 8000 1000 7000 5000 10000 11000 9000 5000 9000 8000 11000 Overtime Wages $ 7,760 $ 6,800 $ 6,000 $ 6,100 $ 6,200 $ 7,300 $ 7,400 $ 6,900 $ 6,500 $ 6,600 6,800 $ 7,450