Elaine gets quiz grades of 81, 85, and 82. She gets a 72 on her fınal exam. Find the weighted mean if the quizzes each count for 10% and the final exam counts for 70% of the final grade. Round to one decimal place. O 80.6 O 80.0 O 75.2 O 77.3

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A:

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A: Please see the below picture for detailed solution.

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