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Please help me. it is not a quiz a homework

Please help me. it is not a quiz a homework-example-1

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Answer:

3rd graph

Explanation:

3m ≥ 21 whenever you see '≤ or ≥' then you know the circle must be filled

divide each side by 3 to isolate 'm':

m ≥ 7 This inequality, when graphed, should have a closed circle on the number 7 and the shading would be to the right because the symbol is indicates all values "greater than" 7

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