Econ Services has requested your services in determining the book values of the following assets, respectively. Auto Machinery Historical Accumulated Costs Amortization $20,000 $15,000 150,000 95,000 General repairs and maintenance for the automobile amounted to $4,000. Machinery maintenance included $2,000 for general upkeep. What are the book values for Auto and Machinery, respectively? $20,000; $150,000 $35,000; $245,000 $1,000; $53,000 $9,000; $57,000 $5,000; $55,000