What is the solution set for the given inequality if the replacement set for r is {5, 6, 7, 8, 9, 10}? a. {5, 6, 7} b. {8, 9, 10} c. {5, 6, 7, 8} d. {9, 10}

Hi there! The answer is B.


Subtract 6r from both sides.


Divide both sides of the inequality by -1. Remember that dividing by a negative makes the sign flip.


Therefore, the solution must be bigger than or equal to 8. From the given solution set, the answer is B. {8, 9, 10}

~ Hope this helps you!