Break into parts: hours, minutes, and seconds. Convert each to seconds and add.<br><br>
&bull; 1 hour = 1 × 3600 = 3600 s<br>
&bull; 45 minutes = 45 × 60 = 2700 s<br>
&bull; 30 seconds = 30 s<br>
&bull; Total = 3600 + 2700 + 30 = 6330<br>
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Final Answer: 6330 s