Aircraft Sale

I have two questions-

1. Having placed an aircraft for sale, is it possible to take it off the market and put it back to work in my fleet?

2. If the aircraft is not bought by another airline, will Airline Sim purchase it after a certain amount of time?

1. If selling then yes, you can take it off the market if another player's bid has not been put on the aircraft

2, I'm sure this only applies to leasing, other player's airlines need to put in the offer(s) to buy.

2. If an aircraft has been on offer for 2 weeks, at 10% of its value, and no sale, then AS Holding will buy it

Thank you guys.