one and one-half or two ton, depending on how new your unit is. older models are not as energy effecient.
A 12000 sqft home would probaly use more than 1 unit.
A square of shingles is 100 sqft. there are 3 bundles in a square. 1267 sqft is better rounded off to 1300 sqft to allow for waste. so 13oosqft dived by 100 sqft = 13 squares. 13 x 3 = 39 bundles.
It could be 35x10ft or 70x5ft
It depends on the size of each paver!
150 sqft
The average size is about 1500 sqft.
You want a about 8000btu for a room that size
The biggest i have seen is a 22000 sqft home built in NC US.
What size AC unit for 2400 sqft ranch house in NC
It says The average is about 650 sqft .
4,144.1 sqft
Based on 20 btu/sqft 26000btu would be the load. You probably won't find that size as AC units are typically sized in tons (12000btu). A 2 ton unit should be fine.