Stamps are based on the weight of the letter, not on where it's going (as long as you stay within the United States). Current postage is 42 cents for the first ounce, and most letters weigh under an ounce unless they're many pages.
3 stamps!
one
41
You can send a letter from Texas to Oregon with one stamp.
probally just 1 or 2 42 cent stamps
what the price to mail letter to
3 stamps!
The number of stamps that you need to send a letter from Australia to London, will depend with the value of one stamp.
I suppose you need one or two stamps to send the president. But my guess is just one.
3 stamps.
About one liberty stamp :)
one
2
one
One.
3
3