Question

2. A manager used a coordinate grid to place her employees in the office.

Answer 1

Idk if this is what you're looking for but...
Wendy's desk is at (-3,0)
Abu's desk is at (2,0)
Trey's desk is at (0,-4)
The Manager's desk is at (0,0) also known as the origin
Abu's desk is closest to the manager's desk because his desk is only 2 paces away from the managers on the x line