W(t}|=coe 45 4 2 The water level of a certain body of water is changing at a rate of ] inches per hour, where t represents hours since 12 am. PartA: Using correct units, explain the meaning of HDWUMf in terms of the context of this problem. (1 point) Part B: Write the integral that represents the number of inches that the water level changes from 3" pm. to midnight. (2 points) Part c: Use your calculator to evaluate your integral from Part B. Explain the meaning of the answer in terms ofthe context. (3 points) Part D: 1il'vhat is the average hourly number of inches that the water level changes for this lake in one day? (4 points)