75 cents.
typicaly 2 stamps
only one
One. From USPS web site: "Forever Stamps can be used to mail a one-ounce letter regardless of when the stamps are purchased or used and no matter how prices may change in the future.
It depends on the size and weight, but if it's a regular letter, a 44-cent stamp will suffice.
what the price to mail letter to
how many forever stamps = .94
5
No, the postman will ignore it. Go get stamps.
Stamps show that you have paid the money to have the letter delivered.
maybe 2 0r 3 stamps
No, you must use US postage stamps.
depends how heavy the letter is