Answer:
<u>note:</u>
<em><u>solution is attached in word form due to error in mathematical equation. furthermore i also attach Screenshot of solution in word due to different version of MS Office please find the attachment</u></em>
have you tried www.khanacademy.org
The answwer to the type of hardware is led lighting it does not need a inverter
#22 is 1s and 0s, hope that helps a little bit