Answer:
Question 3: [tex]b \geq 2[/tex]
Question 4: [tex]r < -5[/tex]
Question 5: [tex]y \leq -6[/tex]
Step-by-step explanation:
Question 3:
[tex]b + 2 \geq 4\\b + 2 -2 \geq 4 - 2\\b \geq 2\\[/tex]
Question 4:
[tex]13 > 18 + r\\13 - 18 > 18 -18 + r\\\\-5 > r\\ r < -5[/tex]sign flips when r switches sides
Question 5:
[tex]3y \leq 2y - 6\\3y - 2y \leq 2y - 2y - 6\\\\y \leq - 6\\[/tex]
