Mathematics, 18.09.2021 05:00 mariahdelossantos031

Ann’s grade is the average of four scores: three chapter tests and a final that counts as two chapter tests. She scored 72, 90, and 75 on the chapter tests. What score does she need on the final to have a grade of at least 80?

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Ann’s grade is the average of four scores: three chapter tests and a final that counts as two chapte...