A few questions re: old school D&D (Moldvay/Cook and AD&D 1e)

[Chainsaw Mage]

Oh, man. I just deleted then SAVED my entire OP trying to EDIT it.

(Huge, deep, resounding sigh).

 

[kitcik]

3. In 1E, 1" = 10'

 

[Flatus Maximus]

Yes, but I reserve the right to change my answer.