Tri-State Mill uses a special sander to finish lumber. Data on the sander and its usage follow: Cost Driver Rate Cost Driver Volume Resources used Energy $ 0.8 per machine-hour 7,000 machine-hours Repairs $ 13 per job 900 jobs Resources supplied Energy $ 7,800 Repairs 12,900 Required: Compute unused resource capacity in energy and repairs for Tri-State Mill. Unused Resource Capacity Energy Repairs