Name the set or sets which this number belong N natural
W whole number
Q rational
I irrational
R real number
The square root of 54

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step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

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i cant fully remember all of the ranks, here are the ones i remember.

hand, ambitous, ace, genius.