Answer:
89.5%
Step-by-step explanation:
If Marcy final exams is worth 30% of the grade, then (100 - 30)% must be for others such as quizzes, assignments, and CA
Her final score therefore = ((85/100) × 70%) + 30% since she made 100% in her final exams = 59.5 % + 30% = 89.5%