Consider a grading system with two mid-terms and a final exam. The first mid-term counts for 25% of the final grade, the second mid- term counts for 30% of the final grade, and the final exam counts for 45% of the final grade. A student achieve a grade of 50% on the first exam, 65% on the second exam and 75% on the final exam. What would the final grade be (rounded up to the nearest percent)? 66% 60% 63%