Answer:
r<=-2
Explanation:
-3(r-5)+7>=28
Distribute
-3r+15+7>=28
Then add like numbers
-3r+22>=28
subtract 22 from both sides
-3r>=6
Divide and when you divide/multiply a negative you flip the inequality sign
r≤−2
-3(r-5)+7≥28
simplify
−3r+22≥28
subracts by 22 on each side
-3r≥6
divide by -3, dividing by a negative switches the sign
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