The correct answer for the question that is being presented above is this one: "C. f(n) = 0.15n + 0.35." The equation that represents Marisa’s library fine as a function of a book that is n days overdue is f(n) = 0.15n + 0.35
Here are the following choices: A. f(n) = 0.15n B. f(n) = 0.50n C. f(n) = 0.15n + 0.35 D. f(n) = 0.50n + 0.15