Answer:
23040 bats
Step-by-step explanation:
Let N(t) be the number of bats at time
We know that exponential function

According to question

Where t (in years)
Substitute t=2 and N(2)=180

Substitute t=5 and N(5)=1440

Equation (1) divided by equation (2)

By using the property
Substitute the values of b in equation (1)
Substitute t=9
Hence, after 9 years the expected bats in the colony=23040 bats
base times height divided by 2
8 time 6 is 48 divided by 2 is 24
8%,3/5,7/10 and .8
8% = .08
3/5 = .6
7/10=.7
.8=.8