A library fines $ 0.50 \text{\$}0.50 $ 0.50 for the first day (or any part of the first day) a book is overdue and $ 0.25 \text{\$}0.25 $ 0.25 for each additional day (or any part of a day) the book is not returned. Determine lim ⁡ t → 4.5 f ( t ) \lim_{t\rightarrow4.5}f(t) lim t → 4.5 f ( t ) , where f ( t ) f\left(t\right) f ( t ) represents the total fine as a function of the number of overdue days t t t .

A library fines $0.50\text{\$}0.50$0.50 for the first day (or a...

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