Approximate middle of the front of the outside!
9 and 12 are.
The standard size of a passport renewal envelope is 9 inches by 12 inches.
1.22
6.3oz
the USPS charges by weight and not by size
1.35
9 over 12 = 75%
12
The answer will depend on what country you are in, where (in the world) the letter is going and the value of each stamp!
To mail a 9 by 12 envelope within the United States, you typically need two Forever stamps, as the cost for mailing a large envelope (flats) is higher than a standard letter. As of my last update, the rate for a first-class large envelope starts at the price of a single Forever stamp, and additional postage is required for extra weight. Always check the current USPS rates, as they may change.
The postage for a 6 x 9 envelope would depend on the weight of it.
The postage for a 6 x 9 envelope would depend on the weight of it.