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Yes, it satisfies the Pythagorean theorem.
The cost of 5 pens and 3 pencils is $23. The cost of 2 pens and 4 pencils is $14. Find the cost of one pen in cents.
Let pen = p, pencil = c, both in dollars.
Wait — perhaps we made a calculation error.
Wait — perhaps question expects integer? Maybe typo, but calculation is correct.
Alternatively, check equations again.
Maybe better to use elimination without fractions.
Wait — maybe I misread: find the cost of one pen in cents — answer should be exact.
But this is not integer — likely acceptable.
Alternatively, perhaps the equations were meant to yield integers.