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In? Marissa's calculus? course, attendance counts for 10?% of the? grade, quizzes count for 10?% of the? grade, exams count for 55?% of the? grade, and the final exam counts for 25?% of the grade. Marissa had a 100?% average for? attendance, 89?% for? quizzes, 82?% for? exams, and 85?% on the final. Determine ?Marissa's course average.

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