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
Step-by-step explanation:
let the younger person be x and older be y
4x + 9 = 24
4x = 15
x = 3.75
y = 24 - 3.75
y = 20.25
Answer:
a
Step-by-step explanation:
if you drew a line where those plots are from the origin, it would be positive and linear