A business purchased a delivery truck 5 years ago at a cost of $45,000. It is now planning to replace that truck with a newer one, which vould cost $60,000. The old truck has a trade-in value of approximately $12,500. a1) How much of these truck costs represent sunk costs? Sunk costs $ If the company incurred the same total fixed costs this year but was able to produce 50,000 xylophones, what is the total cost and perunit cost of production this year? (Round per-unit cost to 2 decimal places, e.g. 15.25.) Total cost $ Per-unit cost $ Brent and Lex are auditors for a regonal CPA firm and travel regularly to client locatons. The firm invoices their tme to clients at a rate of $125/ hour as soon as jobs are completed. The firm recognizes the cost of their labor at $55/ hour, including payroll taxes and penefits. a1) If Brent and Lexi spend a combined 20 hours at one client and complete the audit while there, how much labor cost will the firm recognize for this job? Labor cost $