Chapter 3 - Solving Inequalities - 3-3 Solving Inequalities Using Multiplication or Division - Practice and Problem-Solving Exercises - Page 181: 25

b≤−1/6

18b≤−3⟶ divide both sides by 18 18b÷18≤−3÷18⟶ divide b≤−1/6 Check the endpoint. 18(−1/6)=?−3 −3=−3✓ Check the inequality. 18(−1)≤?−3 −18≤−3✓ Since −1/6 is included in the solution, the endpoint of the graph is a solid circle.