Answer:
ANSWER IS A.) [tex]d \geq -3[/tex]
Step-by-step explanation:
move the variable to the left hand side & change it's sign:
[tex]11d - 9 - 15d \leq 3\\[/tex]
[tex]11d - 15d \leq 3 + 9[/tex]
collect like terms:
[tex]-4d \leq 3 + 9 \\-4d \leq 12[/tex]
divide both sides of the inequality by -4 & flip the inequality sign:
[tex]d \geq -3[/tex]
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