A modern router with WiFi 6 will cover a footprint of about 5,000 square feet. These can be rented from most ISPs for $10 per month. Many times they will upgrade you for free. The classic way to extend WiFi is to punch a hole in the bottom of a Pringles can and place it around one of the antennas. https://en.wikipedia.org/wiki/Cantenna
At 16 seconds per trip (assuming no extra time for getting out of the way, Miss C) 40 people will need 11 minutes to evacuate. A stairway might be faster.
The simplest way to reduce the effects of too much salt is to drink a lot. As far as salt expulsion is concerned, it does not much matter what is being drunken. Given that this is St. Patrick's Day, I expect that many of us will be drunken.
My mother used to say "Figures don't lie, but liars do figure." A chicken results in 3 lbs of meat. A cow generates 880. Not going to work out how that skews the chart, but should be considered.
That looks like a BIOS password screen. The default for the most popular, generic password is 'AMI' . Here is a link to other, default passwords. https://www.computerhope.com/issues/ch000451.htm This could happen if they wiped the BIOS. Once the BIOS is opened up, it will tell you how the computer boots and what can be attached.. My guess is that it used some network device and as well as storing everything on a network.