please help number 16

label Mathematics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

Mar 31st, 2015

Positive 1; negative 3 or 1 ; complex 2 or 0

option 2

Mar 31st, 2015

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Mar 31st, 2015
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Mar 31st, 2015
Jun 26th, 2017
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