There are 20 alligators in the swamp. each year, the number of alligators increases by 25%. there are 25 crocodiles in the swamp. each year, 10 new crocodiles join the swamp.
part b: how many alligators are in the swamp after 4 years? how many crocodiles are in the swamp after the same number of years?
part c: after approximately how many years is the number of alligators and crocodiles the same? justify your answer mathematically.