I attached the problems I am extremely stuck on, 22-25. Do not give me the answers! Just guide me through how to solve them. (especially # 25)
Thank you!
A few hints -- I am pretty sure you will find these relationships in your current studies:
This may help for 25. Basically, it's an algebra problem, once you see how to use the given values.
https://en.wikipedia.org/wiki/Linearity_of_integration