B. Based on the data, which fish population is changing at the greatest rate? Explain your answer.

Fish B

Step-by-step explanation:

the population for fishy B seems to be going up by 30 fish in a year while fishy A is going up by 20, so just cause fish A has more fish, doesn't mean it's rising at an alarming rate. Since fishy B is going up faster, theirs a matter of time until fish b will catch up with fish A

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.