My daughter is seeking any resources of preliminary Chemistry courses. She would like to self-study, like a preview of what she will learn in this fall semester during the upcoming summer holiday. ...

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Hi! Here is my problem. My daughter lost some of her self-study record. She started to self-study 2 units of Algebra 1 almost one week ago. They are Quadratics: Multiplying & factoring and Quadrati...

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2. Technical Issues and Workarounds