Solutions to homework in 3.8
#12 Volume is decreasing at a rate of 111.7 inches/minute.
#14 Distance is increasing at a rate of 12.3 feet/second.
#18 Sand is leaking out at a rate of 1885 inches/minute.
#20 The balloon is rising at a rate of 5.00 feet/second.
#22 The diameter is decreasing at a rate of 0.1989 inches/year.
#28 The distance is decreasing at a rate of 7.59 feet/second.
#46 The velocity is 837.8 miles/hour.

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