Joe, Nadine, and Sylvia are playing a game. Sylvia looks at the current scores and says, "My score is 15 more than Nadine's score. And, my score is the opposite of Joe's score." Joe asks what his score is and Sylvia says, "You have 40 ." To determine Sylvia's and Nadine's scores, notice that you know nothing about Nadine's score. Let her score be represented by n. n = Nadine's score Read the problem again, and notice that Sylvia compares her score to Nadine's score. Based on this comparison, which expression represents Sylvia's score