Answer:
The tip for the server is 16%
Step-by-step explanation:
13.6 is 16% of 85.
Synthetic division yields

See attachment for work
Answer:
9 ≤ x ≤ 18
Step-by-step explanation:
Basically the minimum he should work is 9 hours (he will earn $105 per week) and the maximum he should work is 18 hours (he will earn $295 per week)