If the initial fee is $20 and additionally $15 is charged per day, then the total amount is given by:
![A=20+15x](https://img.qammunity.org/2023/formulas/mathematics/college/wlo99f6nvg0aed8hnm5jco4xjdc4as6z3e.png)
Where "x" is the number of days and "A" the total amount to pay. Since the total amount is less than $110, then we have the following inequality:
![20+15x\le110](https://img.qammunity.org/2023/formulas/mathematics/college/10pylx78tyi2f98bbdh8l317w9p33r098s.png)
This is the inequality that can be used to determine the value of "x".