
seperable differential equations will have the form

what you do from here is isolate all the y terms on one side and all the X terms on the other

just divided G(y) to both sides and multiply dx to both sides
then integrate both sides

once you integrate, you will have a constant. use the initial value condition to solve for the constant, then try to isolate x or y if the question asks for it
In your problem,

so all you need to integrate is
The third option is correct
Like earlier take the bigger shape and divide the smaller one.
8.4 divide by 4 and you get 2.1.
Answer: w=18
Explanation: 7×6 = 42 so to get W you have to multiply 3 by 6. 3×6 = 18.