SOLUTION: Suppose Batman is at most 4 years younger than Superman and at least twice Robin’s age. If b, s, and r are the ages of Batman, Superman, and Robin respectively, which inequality d
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Question 304941: Suppose Batman is at most 4 years younger than Superman and at least twice Robin’s age. If b, s, and r are the ages of Batman, Superman, and Robin respectively, which inequality describes their ages?
A. 2r b s - 4
B. 2r b s + 4
C. 2r b < s + 4
D. 2r < b < s - 4
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