Can someone help me please? Thanks

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1 Answer
Sep 8, 2017

c.r>=1 1/2

Explanation:

2r-9>=-6

Add 9 to both sides of the inequality to isolate the unknown (r's) term:
2r-9+9>=-6+9
2r>=3

Then we divide both sides by two to isolate the unknown:
(2r)/2>=3/2
r>=3/2
r>=1 1/2 (since 3=2+1)