Each day that a library book is kept past its due date, a $0.30 fee is charged at midnight. Which ordered pair is a viable solution if x represents the number of days that a library book is late and y represents the total fee?
Answer: 8, 2.40. The reason why is because the first number is the number of days, and the second is the fee. The first cant be a decimal or negative, and the last can't be negative. So the answer is D
