-15+5x= 20
5x= 35
x= 7
20= -15+5x
35= 5x
7 = x
Answer:
515
Step-by-step explanation:
it's self-explanatory
Answer:
About 473 quails.

Step-by-step explanation:
Exponential equation with
as the initial amount and rate of r is:



After 5 years the population will be:


So the population will be about 473 quails.
Answer:
C
Step-by-step explanation: