Final answer:
The solution to the inequality x + 20 ≤ -10 is x ≤ -30.
Step-by-step explanation:
The given inequality is:
x+20≤-10
To solve this inequality, we need to isolate the variable x on one side of the inequality symbol.
By subtracting 20 from both sides of the inequality, we get:
x≤-30
So the correct answer is:
x ≤ -30