1. Manufacturing Cost Terms.Indicate whether each of the following costs associated with production would be classified as direct materials, direct labor, or manufacturing overhead.
   1. Salaried supervisor responsible for several product lines
   2. Maintenance personnel
   3. Hourly workers assembling goods
   4. Nails used to assemble cabinets
   5. Bike frame used to build a racing bike
   6. Factory utilities
   7. Glue used to assemble toys