Tammy is a senior in high school and she completed her first semester in Here s a breakdown of her grades in the class this semester Category Test Quiz Per Final Final Exam 76 75 114 45 79 58 Scores 90 80 85 75 70 90 90 80 80 70 80 65 What is Tammy s overall grade in the class 78 45 Mean Score Category 45 35 5 15