sooo im working on exponential growth, heres the word problem-

The population of a certain animal species decreases at a rate of 3.5% per year. You have counted 80 of the animals in the habitat you are studying.
a. Write a function that models the change in the animal population.

b. When will the population first drops below 15 animals

could someone help me with this please? i'd appreciate it so much

Question

sooo im working on exponential growth, heres the word problem-

The population of a certain animal species decreases at a rate of 3.5% per year. You have counted 80 of the animals in the habitat you are studying.
a.	Write a function that models the change in the animal population.

b.	When will the population first drops below 15 animals

could someone help me with this please? i'd appreciate it so much