1. Buy a drum sander, which would cost $1,250, and would cut his sanding time to one eighth. 2. Ask a semi-retired neighbor to do the sanding, using Adam's woodshop, supplies, and sanders, and pay $10 per hourthe same amount the neighbor earns in a current part-time job. 3. Take the boards to a local Amish woodshop that is a 45-minute drive (35 miles away). He would pay to use their drum sander$50 per hour (in increments of one hour or part thereof)that an employee would operate. This price includes all supplies for the drum sander

Sandpaper - for drum sander

$0.60

cost per mile

0.46

what is the relevant cost in each scenario?