A school fundraiser sells cookies for $2 each and brownies for $3 each. The class needs to raise at least $120. If they sell 20 cookies, which inequality gives the number of brownies b needed?
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A
3b + 40 ≥ 120
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B
3b + 40 ≤ 120
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C
2b + 60 ≥ 120
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D
3b − 40 ≥ 120