Part2 Auto Body specializes in repairing automobiles involved in accidents. Arena has contracts with most insurance providers, enabling Arena to directly bill (and collect from) customers' insurance companies. Arena estimates that its variable costs equal 30% of billings and that fixed costs equal $14,000 per month. Furthermore, Arena pays income Required: I. What is Arena's monthly breakeven point in billings (S)? 2. Suppose Arena's billings for March were $50,000. What is Arena's profit before t 3. Suppose Arena wants to have profit after taxes of $7,280 per month. What required level of monthly billings