Need lend a hand next to carpenting? if i want to replace the carpet within the condo, how would...

if i want to replace the carpet within the condo, how would i price that?? like i saw the carpeting i want it say $149 40Sq. Ft. per carton...what the hell does that mean?? is that going to be enoguh for 2 rooms near closets and a living room? the living room is not that big, it's a small condo...any help, direction or suggestion will be greatly appreciated..
Answers:    Measure for your square footage. Measure wall to wall, east to west, (say 10 foot), and measure wall to wall, north to south (say 13 feet), afterwards multiply.
10 x 13 = 130 square feet.
Do respectively room and then give all together to return with square footage total.
Then buy enough square foot of carpet to cover.

Hope this help.
You have to find out how several square feet your condo is. You can test it, but if you live in a condo, I would ask the front department or the company your bought it from how many square foot it is. If you want to measure it, weigh the lenghth of your condo and multiply it by the width. That's the square footage of your condo. As far as the price, $149 40 sq foot per carton. Means it costs $149 dollars for 40 square foot of carpet. If your condo is 1,200 square foot, it will cost you $4500.