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melomori [17]
3 years ago
15

Please help me with #6

Mathematics
2 answers:
Flura [38]3 years ago
8 0
I guess the answer would be either 3d+12d or 3 times d times(d+4)
hope I help.

zhenek [66]3 years ago
6 0
The answer is d+4...
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2 years ago
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