Please I don't know why my code is not passing tests 10, 11, 12 on Metric/Imperial Converter challenge

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Describe your issue in detail here.
My code seems to work properly and correctly on those tests 10, 11 and 12, but I don’t know what I am doing wrong.
When I run test on replit I got these error messages

Your code so far

Blockquote
Solution link
boilerplate-project-metricimpconverter - Replit

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Challenge: Metric-Imperial Converter

Link to the challenge:

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