What is the greatest common factor?

7*7*9*11*13

7*9*9*11*13

7*9*11*11*13

(a) 7*9*11*13

(b) 7*7*9*9*11*11*13

(c) 7*7*9*9*11*11*13*13

(d) 7*7*7*7*9*9*9*9*11*11*11*11*13*13*13

What is the answer to this problem (-2) + 3=

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nn Landers - who wrote a daily advice column appearing in newspapers across the country - once asked her readers, "If you had it to do over again, would you have children?" Of the more than 10,000 readers who responded, 70% said no.

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