<span>The answer is: 16 .
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Explanation:
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8</span>² − 7² + 1 = 64 − 49 + 1 = 16 .
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Note: 8² = 8*8 = 64 ;
7² = 7*7 = 49.
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Answer:
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Yes 1.999 is an <span>irrational number</span>
18 x 3 = 54. So the correct answer is D. 54 pounds.