Yes. Either with the airline, or you make an agreement with another passenger.
That is a personnel preference. What one person thinks is comfortable you may not.
Economy, semi-flexible airline seats dates can be changed, and they are partially refundable on cancellation.
tough homework.
You can switch the seats From a 2007 dodge ram to a 2005 with little to no problems. Switch in the seats are easy they bolt down with no problems, but the seatbelts will not work plug for the power seats will need to be modified. I switch the seats of my 2005 to 2007 quad cab last week. I did not have the power seats working yet And I had to switch the seat belts From the seats on the 05 to the seats on the 07.
Depends on how the airline has it configured, but 60-70 seats.
It depends on how many seats the airline wants in the aircraft for that class.
Yes, the airline is skybus (www.skybus.com). The first 10 seats are $10.
That you have a reserved seat or seats for a specific flight on a particular airline, departing at such and such time, etc etc.
You book these via the airline operator you are flying with
It differs from airline to airline but usually a very small percentage is first class.I would estimate anywhere between 20-25%.
A 320 has between 150-180 seats it depends on the airline and the configuration(s) they choose.Most of them are 180 seats,though You welcome
Fly Emirates