Final answer:
The inequality representing Destiny's temperature requirement is t≤75. It means the temperature should be less than or equal to 75 degrees, allowing for the temperature to be exactly 75, but not higher.
Step-by-step explanation:
The inequality that shows the temperature desired by Destiny to be no more than 75 degrees is represented by t≤75.
This inequality means that the temperature t should be less than or equal to 75 degrees.
Option A suggests that the temperature must be strictly less than 75 degrees, not allowing it to be exactly 75 degrees which makes it incorrect for this context.
Option C indicates the temperature should be higher or equal to 75 degrees, which is not consistent with Destiny's requirement of the temperature not going above 75 degrees.
Option D suggests the temperature should be exactly 75 degrees, which disregards the possibility of the temperature being lower than 75 degrees, and hence is incorrect for this scenario.