A professor grades students on 4 tests, a term paper, and a final examination. Each test counts as 15% of the course. The term paper counts as 20% of the course grade. The final examination counts 20% of the course grade. Jay Mark has test scores of 80, 78, 92, and 84. He got 84 on his term paper and 88 in his examination score. Use the weighted mean formula to find Jay Mark’s average for the course.