In your biology class, your final grade is based upon several things: Labs are 25%, Exams 45%, and Final is 30%. Assume your lab score is 92%, the scores upon three exams are 80, 91, and 90.
a. What is your entire percent before the final? Write down your answer in percent form rounded to 2 decimal places.
b. What score do you need upon the final in order to receive A in the class? Suppose a standard grading scale. Write your answer in percent form rounded to 2 decimal places.
c. If your final exam score is 85, what is your overall percent in the class? Write your answer in percent form rounded to 2 decimal places.