David Gou

Multivariable Calculus Excercises

For most of Khan Academy math, there are many exercises, quizzes, tests, mastery challenges, and course challenges to help learners touch up and apply skills they learned in videos and articles. Ho...

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Deleting Scanned SAT Practice Tests

I, along with many other users, would love to see a feature where you can delete scanned tests from the College Board App. My main reason is because sometimes, I scan a test and a question scanned ...

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2. SAT Questions and Feedback