It depends on where it is being posted from, where to and, quite possibly, its weight.
Depends on where it is going to!
$0.44
45 cents
twelvepoint fifty
For flat paper items, postage goes by weight, not by size.
Depends on where it is going to!
Since the envelope is 5.25 X 5.25 inches square, the postage is .70 cents for first class. This rate is for an envelope that weighs .5 ounces. The postage may be higher depending on the weight of the envelope.
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.
The postage is standard first class 1 ounce (a "Forever" stamp).
thirty-two cents
.44
.44
.44
75
$0.44
45 cents