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lora16 [44]
3 years ago
6

Who can help me with number 12

Mathematics
1 answer:
Sati [7]3 years ago
3 0
His total is b + 5b + 10 
I'm not sure if you know this, but b can be written as 1b.
The total is 1b + 5b + 10 = 6b + 10
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