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ELEN [110]
3 years ago
8

Please help and explain!!

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
8 0
A8=a7+6
a8=63
a9=a8+6
a9=69
a10=69+6
=75
a11=75+6
=81
a12=81+6
87
Hence, D
(comment if u dont get it :))

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