A forest has
800
800800 pine trees, but a disease is introduced that kills
1
4
4
1
​
start fraction, 1, divided by, 4, end fraction of the pine trees in the forest every year.
Write a function that gives the number of pine trees remaining
�
(
�
)
P(t)P, left parenthesis, t, right parenthesis in the forest
�
tt years after the disease is introduced.