If a call started at 7:53 and ends at 8:25.
How long did the call last?

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An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

What is the absolute value of the complex number -4- 2 v14 3.15 14 18