Question

Ruth borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Ruth paid for the book when she returned it x days after the due date:
2 + 0.25x

What does the second term of the expression represent?

Answer 1

The "2" is the fixed rental fee, and the "0.25" is the late fee, the "x" is there to show you need to multiply 0.25 the amount of days Ruth had the book late.

Answer 2

0.25= the fee charged for everyday the book was late, and the x= the number of days, where as 2 is the rental fee.