𝕯𝖊𝖗𝕶𝖆𝖎𝖟𝖊𝖗

I got proficient in the lessons and then took the unit test. After getting a 90, I realized it didn't give me the mastered indication. It said that some lessons weren't tested and that I needed to ...

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2. General Khan Academy Questions
3. I cannot master a unit even whith Unit Test passed at 100%