Answer is
Step by step
-5b + 5 ≤ -75
Subtract 5 from both sides to isolate b
-5b + 5 -5 ≤ -75 -5
Simplify
-5b ≤ -80
Divide both sides by -5 to solve for b
-5/-5 b ≤ -80/-5
Simplify and switch the sign since that’s the rule when you divide by a negative with inequalities
b ≥ 16
Your number line is attached