Answer:
6
Step-by-step explanation:
BIDEN 2020
n = 7
Varies directly
w/n² = k
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when n = 3, W = 117
k =117/3²
k = 117/9
k = 13
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Find n when W = 637
637/n² = 13
637 /13 = n²
49 = n²
7 = n
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