depends how heavy the letter is
One if it is for the correct amount or greater in postage.
what the price to mail letter to
One. It will cost you 42 cents. Or you can use 42 one-cent stamps, or any number in between depending on the amount each stamp costs. Before you ask, you can mail a letter next door with the same amount of stamps. Or you can mail one to Seattle.
you need ten stamps actually i don't know
Stamps show that you have paid the money to have the letter delivered.
maybe 2 0r 3 stamps
You would only need one stamp to mail your letter
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