Answer
Average change in sea level per minute = -24.5 ft/minute
Explanation
The average change in sea level each minute is given as
[tex]\text{Average change in sea level per minute = }\frac{Sea\text{ level changes}}{Time\text{ Taken}}[/tex]For this question,
Sea level changes = -73.5 ft.
Time Taken = 3 minutes.
Average change in sea level per minute = (-73.5/3) = -24.5 ft/minute
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