The answer is D. because you use Pythagoreans theory and do 12^2+23^2 which equals 673, then you root it and get 26.
Answer: (if you meant 21)
84
Step-by-step explanation:
Multiples of 12:
12, 24, 36, 48, 60, 72, 84, 96, 108
Multiples of 14:
14, 28, 42, 56, 70, 84, 98, 112
Multiples of 21:
21, 42, 63, 84, 105, 126
D. 2/9
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