Answer
Average change in sea level per minute = -24.5 ft/minute
Step-by-step explanation
The average change in sea level each minute is given as
![\text{Average change in sea level per minute = }\frac{Sea\text{ level changes}}{Time\text{ Taken}}](https://img.qammunity.org/2023/formulas/mathematics/high-school/i3938jl2koqkdvstszlpbbqpss47gikx7c.png)
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
Hope this Helps!!!