A forest has 800800800 pine trees, but a disease is introduced that kills \dfrac{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(t)P, left parenthesis, t, right parenthesis in the forest ttt years after the disease is introduced.