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OpenStudy (anonymous):
med Charlotte needs at least $3 in postage to mail a package. She has 9 stamps total, where some are $0.22 and $0.42. Which system of inequalities represents the above situation? A. a + b ≤ 9 .22a + .42b ≤ 3 B. a + b ≤ 9 .22a + .42b > 3 C. a + b ≤ 9 .22a + .42b ≥ 3 D. a + b < 9 .22a + .42b ≥ 3
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