13. Answer: n ≥ 108
Step-by-step explanation:
18 ≤ n ÷ 6
×6 ×6
108 ≤ n → n ≥ 108
Note: The line under the inequality symbol represents a closed dot
Graph: 108 ·---------------→
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14. Answer: x > -4
Step-by-step explanation:
-3x < 12
÷(-3) ÷(-3)
x > -4 Flip the inequality sign when × or ÷ by a negative
Note: No line under the inequality symbol represents an open dot
Graph: -4 o-----------→
