The answer will depend on where you are posting from, where you are posting to and whether or not there are any special requirements.
Depends on where it is going to!
1 5 of an inch is 1 and 5/12 inches.
5/8 of an inch
5/8 is 0.625 of an inch
25 units squared
nope
Go to the site below and click on the "Calculate Postage" tab.
thirty-two cents
The largest diameter is 5 inches; therefore the diameter is 5 x pi.
You can mail up to 5 sheets of 20lb paper with 1 standard postage stamp within the United States.
Assuming the weight is under one ounce, one Forever stamp (47 cents) will be sufficient.
The weight of 5 sheets of regular 8.5 x 11 inch printer paper is approximately 0.02 pounds or 9 grams.
A 500 pages of 20lb paper is 2 inches thick. If you use 18lb or 24lb paper your measurement will change in proportion. The still of ring will determine how many inches of paper you can actually get into a 5 inch binder. Also, the pages will expand once you start using them.
you can put up to 3 pieces of paper in a business size envelope for 1 postage stamp I remember this because I went to a correspondence High School. Also: "1-3 just one. 4-borderline, 5-two. Note that the second ounce costs less than 42 cents. This really depends on what weight paper you use so if you want to make sure, take the letter to the post office where just about all of them have an automated terminal where you can weigh and buy proper postage. As a tip, they seldom check the weight. If it is in a standard envelop and it is not bulging, they will let it through." (From Yahoo: http://answers.yahoo.com/question/index?qid=20090225184741AAP6Xqm)
5 cents.
Postage would be $2.27 for 5 oz. package to Canada.
Depends on where you launched it from. If you threw it from ground level and it landed on ground of equal height, then I'd say 15 seconds, 30 at the absolute max. If you launched it from, say, 30,000 feet, the altitude at which jumbo jets fly, then who knows how long it could stay up there, let alone where it will land.