(5.7.1) Suppose a student’s final grade in a biology course is determined using the following weights: Quizzes are worth 5% Exam 1 is worth 20% Exam 2 is worth 20% Lab reports are worth 15% Research paper is worth 15% Final exam is worth 25% Just before the final, she has earned the following grades (all out of 100): Lab report grades: 75, 90, 85, 69, 70, 75, 80, 75 Quiz grades: 85, 80, 0, 60, 70, 80, 80, 75 Exam 1: 80 Exam 2: 70 Paper: 85 a. What is her lab report average? b. What is her quiz average? c. What is her course average just before the final? d. For a B she needs a course average of at least 82%. What is the lowest grade she can get on the final and achieve that goal?

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