Rates, SM-Bank 056 Convert $648 per hour into cents per second. (2 marks) Show Answers Only \(18\ \text{cents/second}\) Show Worked Solution \($648\text{/hour}\) \(=\bigg(\dfrac{64\ 800}{60\times 60}\bigg)\ \text{cents/second}\) \(=18\ \text{cents/second}\)