7&8 please help

7. (6 pts) Justin is taking a 12-question multiple-choice exam. Each question has three possible answers (a), (b), and (c) In how many possible ways can Justin answer the questions? 8. (25 pts) The grade distribution over the past 2 years for a math course is summarized in the table. Answer the following questions and round the result accurate to 4-decimal places. If student is selected at random, what is the probability that the student a. Receives a grade of A. A B C D b. Did not receive a grade of A. Male 18 25 32 14 c. Student is male and received a grade of B. Female 21 30 24 11 d. Student is female or received a grade of A. e. Received a grade of C, given that the student is female. f. Student is a male, given that the student received a grade of C. g. Received a grade of at least a B or student is a female