Having trouble with this problem, can someone help. I don't want just the answer, the steps will be greatly appreciated.

http://www.flickr.com/photos/55019573@N06/8575966534/in/photostream/

Part (a) in both volts and ohms. volts i got 177.5, ohms i cant find.

Part (b) in mA (mili amps)

Thank you in advance!