1. By what factor does organism A's population grow in the first five days? Express your answer as an exponential expression. (2 points)















2. The expression showing organism A's decrease in population over the next 3 days is
(
1
2
)
3
(
2
1
​ )
3
. This can be written as (2–1)3.

Write (2–1)3 with the same base but one exponent. (2 points)















3. By combining the increase and decrease, find an exponential expression for the total change in organism A's population after 8 days. Show your work. (2 points)