Question 6 Selected one answer choice
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If a ≥ 30 and b ≤ 15, then which of the following must also be true?

A.a − b ≤ 45

B.a − b ≤ 15

C.a − b ≥ 15

D.a + b ≤ 45

E.a + b ≥ 45

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