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Mathematics 21 Online
OpenStudy (ksaimouli):

7(102) + 1(101) + 1(100) + 5(10-1) + 3(10-2) 7(102) + 1(101) + 1(100) + 5(10-1) + 3(10-2)

OpenStudy (ksaimouli):

answer only 1

OpenStudy (anonymous):

1st one. 984

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