Use the table to answer the question.

Days Fine
2 30 cents
3 45 cents
4 60 cents
The table shows the fine owed for an overdue library book according to how many days it is overdue. What is the initial value?

To find the initial value, we need to determine how much the fine is for 1 day of being overdue.

From the table:
2 days = 30 cents
3 days = 45 cents

To find the difference between 3 days and 2 days, subtract 30 cents from 45 cents:
45 cents - 30 cents = 15 cents

Therefore, the initial value is 15 cents for 1 day of being overdue.