Referring to the question in the attachment, please help to advise if my solution are correct.

 

Print is too small for my old eyes. And please post homework in the Homework Help forum.

 

Seems correct to me.
Also, for such simple circuits if you need to check fast if the result is correct, put the values into some simulator and instantly see the voltages and currents. For this I very much like spectrumsoft´s microcap which has a dynamic DC mode, which allows you to tweak values and see the results instantly, without having to rerun the simulation, place the masurement point etc.