Question: an instructor grades as follows: unit exams 20%, project, 30% and final exam 50%. A student had grades of 75, 81, and 89 (respectively) for

an instructor grades as follows: unit exams 20%, project, 30% and final exam 50%. A student had grades of 75, 81, and 89 (respectively) for unit, exams, project, and final exam. Find the students final course average using a weighted mean. Round to the nearest whole percentage point

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