The ODE is separable:
Integrating both sides gives
Given that , we find
so that
Here is the answer to your problem
Answer:
A
Step-by-step explanation:
B IS WRONG
C IS WRONG
D.
The line goes through those points
15
5+4=9
27÷9=3
girl's ratio is 5 so
5×3=15
answer is 15