A math textbook costs $60.00. The number of students who need the book is represented by x. The total cost of purchasing books f
or a group of students can be represented by the function f (x).Write an equation in function notation to represent the cost of purchasing textbooks for x students.
<em>The word usage in last sentence of the question is not well presented. However, I can understand that you intend to solve for the width of the park</em>