suppose a tank leaks toxic chemicals. the area affected is a circle centered on the tank. when the spill is first noticed, the circle has a radius of 30 meters. a response team arrives 20 minutes later, by which time the affected area has grown to a circle with a radius of 120 meters.
How rapidly was the area of the spill changing in m^2/min between the time the spill was noticed and the arrival of the response team? (round your answer to the nearest whole number and be sure to include the units)
If the area of the spill is changine at a constant rate, how rapidly will the radius be changing when the spill team arrives? (round your answer to the nearest tenth and be sure to include units)