Substitute
, so that

Then the resulting ODE in
is separable, with

On the left, we can split into partial fractions:

Integrating both sides gives




Now solve for
:


Answer:
Option 2?
Step-by-step explanation:
Its 25 for the second one
Answer: The number 8 goes into 40 five times, resulting in a final quotient of 2.5.
Step-by-step explanation: