bob and his fish friends have been noticing these weird silver things hanging out in the water lately. They have also noticed that some of their friends seem to be disappering. bob wonders if the two are related... Their school of fish once had 450 fish in it but now they only have 360 in their school. by what percentage was the population of their school of fish reduced?
A). 20% C). 2%
B). 25% D). 5%