Solve the problem.Jackie's sisters weigh 115 lb, 140 lb, 122 lb, and 123 lb. The average female in her city weighs 139.7 lb. How much does Jackie weigh if she and her sisters have an average weight of 139.7 lb?
A. 127.9 lb
B. 198.5 lb
C. 123 lb
D. 125 lb
Answer: B
Mathematics
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?
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