Solve the problem.A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 45 marbles in it. At least how many green marbles does it have?

A. At least 16 green marbles
B. At least 30 green marbles
C. At least 15 green marbles
D. At least 23 green marbles


Answer: C

Mathematics

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A. domain: (-?, ?)
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B. domain: (-?, ?)
range: 
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range: (-?, ?)
D. domain: 
range: (-?, ?)

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