Is it reasonable or not give me an anwser
It's reasonable for you to expect an answer. However, I can't give you an answer because I don't know.
Remember that all of the tutors are volunteers and answer questions when they have some spare time.
Have you tried Googling scientific notation?
Steve answered one of your questions less than 15 minutes after you posted it.
Please be patient!
http://www.jiskha.com/display.cgi?id=1481759476