We want to write an inequality that represents the given situation, we will get:
R ≥ 25 min.
So we know that Nathan must read for at least 25 minutes, so if we define R as the amount of time that Nathan reads each night, we have that the minimum possible value of R is 25 minutes (and R can be larger).
Then R can be equal to or larger than 25 minutes, this is written as:
R ≥ 25 min.
This is the inequality that shows how long Nathan can read each night.
If you want to learn more, you can read:
https://brainly.com/question/11612965