Both are in the U.S. You need first class U.S. postage.How many stamps is that? One 42-cent stamp. Forty-two one-cent stamps. Four ten-cent stamps and one two-cent stamp. One 25-cent stamp and one 17-cent stamp.
One 41 cent stamp, until May 2008, then it will be one 42 cent stamp.
not even a fraction of an ounce
A stamp is good for letters up to 1 ounce.
1, so long as it is a 48 cent stamp assuming you are in the United States
will a .46 cent stamp mail a 1.1oz letter?
3.15 ounces or 89.3009 grams
There have been hundreds of 1 cent stamps issued by many different countries. You will have to identify the specific stamp by using a catalog or reference book. That will also provide an estimated value.
A dozen is 12, so twelve stamps!
The cost is 98 cents. You could use two 44 cent stamps plus a 10 cent stamp. You can buy a 10 cents or a 98 cent stamp at the post office. If all you have is 44 cent stamps, you would have to use three.
if it's a letter than it should only need 42 cent stamp they make 42cent stamps they also make smaller denominations so you can combine them, i.e. a 41cent stamp and 1 cent stamp is equivalant.
Pretty much every year. The US has included a one cent stamp in all of their definitive stamp sets. You will need to consult the catalogs to find the specific types and how many years they were actually issued, though they are always available.