Final answer:
To solve the given inequality, distribute the terms, combine like terms, and isolate f on one side.
Step-by-step explanation:
To solve the inequality: -6+3(5f-5)≤-10f-8-5
First, distribute the 3 on the left side: -6 + 15f - 15 ≤ -10f - 13
Then, combine like terms: 15f - 21 ≤ -10f - 13
Add 10f to both sides: 25f - 21 ≤ -13
Add 21 to both sides: 25f ≤ 8
Finally, divide both sides by 25: f ≤ 8/25
Therefore, the solution for f is f ≤ 8/25.