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Anyone know the right answer?

Anyone know the right answer?-example-1
User Filofel
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1 Answer

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Begin by understanding the word "per"

Whatever follows per is on the denominator of the fraction

So it's cm/$
21.5 cm / 17.20 = 1.25 cm / dollars.
It's an odd unit, but that's what it is.
This is very expensive wire. Must be made of something like platinum.

User Luis Ferrao
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