The rate is 98 cents for an ordinary letter. You can buy 98-cent stamps, but any combination of valid US stamps that 98 cents or more will work, eg two 44's plus a 10-center.
Just mailed Christmas card, was $1.08
US postage stamps do not expire -- they are always worth face value as postage.
Only one postage stamp is needed. However, it needs to be for 98 cents.
Not in the United States. The US Postal Service approves the postage stamps.
To send a letter from the US to Peru, you need 94 cents postage. No special stamps are needed.
No, you have to use stamps from the country of origin of the mail. In this case you will have to use Italian postage stamps.
No. When mailing items you use the stamps of the country of origin.
The US issued the first postage stamps in 1847.
No, you must use US postage stamps.
That is what stamps are for, to pay postage. In the US you buy postage stamps and put them on mail to any other country in the world.
Stamps for postage? One regular first class stamp. Hawaii is part of the US, and served by the same postal system as Houston.
No - Us stamps can only used on mail sent from the US.