On Electrical Engineering Stack Exchange, find out how many 'power-supply' questions were posted in the last 7 days. Additionally, identify the user with the highest reputation whose primary tags include 'power-supply' and state their username and exact reputation score.
Navigate to the 'Tags' page on Electrical Engineering Stack Exchange. Locate the 'power-supply' tag and extract the number of questions asked in the last 7 days. Navigate to the 'Users' page. Ensure users are sorted by reputation (default behavior, but confirm). Scan the top users to identify the one with the highest reputation who also lists 'power-supply' among their top tags. State the username and exact reputation score of the identified user.
State that 14 'power-supply' questions were asked in the last 7 days. Identify 'Justme' as the user with the highest reputation whose top tags include 'power-supply'. State 'Justme's exact reputation score as 330k.