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Please help I'm having a small brain moment

Please help I'm having a small brain moment-example-1

1 Answer

7 votes

Answer:

Option 4: r ≥ 6

Explanation:

5(6+3r) + 7 ≥ 127

30 + 15r + 7 ≥ 127

37 + 15r ≥ 127

15r ≥ 90

r ≥ 6

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