To model Trenton's earnings from his job as a server, we'll denote:
- \( x \) as the number of hours he works in a day.
- \( y \) as the total amount he earns in a day.
Trenton earns $7 per hour for his work, so his earnings from his hourly wage can be represented as \( 7x \).
In addition to his hourly wage, he can earn up to $100 in tips. Therefore, the total earnings \( y \) can be expressed in relation to the hours worked \( x \) as:
\[ y \leq 7x + 100 \]
Thus, the inequality that represents the situation is:
\[ y \leq 7x + 100 \]
This inequality states that Trenton's earnings \( y \) will be less than or equal to the amount he earns from working \( 7x \) plus his tips, which could be as much as $100.