Determine whether or not one or more pairs of twin primes exist between the pair of numbers given. If so, identify the twin primes.15 and 28
A. 17, 19
B. 17, 19 and 21, 23
C. No
D. 21, 23
Answer: A
Mathematics
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, 3 ? x ? 6
A. 
B. 9
C. 18
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A. 
B. 1
C. 3
D. 0
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A. - 
B. -2
C. - 
D. -
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