Cameron is playing 9holes of golf. he needs to score a total of at most 15 over par on the last four holes to beat his best golf score. on the last four holes he scores 5 over par, 1 under par, 6 over par, and 1 under par. a. write and find the value of an expression that gives cameron score fore 4 holes of golf. b. is cameron's score on the last 4 holes over or under par? c. did cameron beat his best golf score?