Susan takes an Introduction to Statistics class at BMCC in Fall 2020 semester. The class requires a total of 5 different exams. The first four exams, she earned 85, 90, 77, 89. The class requires to earn "A", then class standing rate is 97% on the z-score. If the overall class average is 77, is there any chance for Susan to get "A' in this class? If so, what is the minimum score Susan can earn on the fifth exam?

(Hint: You may find the z-score corresponding to 97% first. And then you need to find the overall score for Susan to earn "A". finally using other scores, find the fifth exam score)