i need help to do my hw for my electric system class

Hello all!

I have some HW that should done online through Mastering Assignments and currently I need to get A in each of them because these HW basically was already due but my professor allowed me to to do them as a chance to help my grade goes up. All should done before this Thursday. if you are knowledge with this class please let me know so I can give you the login info

I attached some example of how the work look like!