From which country? To where? Domestic postage within the United States for a 1 ounce flat size envelope or card (this size does not qualify as letter size or postcard size) is: 88 cents. Additional ounces are 17 cents.
Postage for a large postcard that measures 5.25" x 5.25" is .49 cents as of May 2014. A smaller card, that measures no more than 6" by 4.25' is only .34 cents.
insufficient information it deoends on how much the card weighs but probobly one stamp
It depends on which country you are posting from and to which country.
It depends on where you are posting it from and where to - nationally or internationally.
0.67$
$0.44
28 cents is the current post card rate.
The answer depends on which country you are posting from, to which country and whether or not there are any special requirements.
Postage to Mexico on a 6" x 4 1/4" postcard is $.80. Web site USPS.com is good for these types of questions.
The postage for a 6 x 9 envelope would depend on the weight of it.
625 Cubed is 625 times itself 3 times.625 x 625 = 390,625390,625 x 625 = 244,140,625244,140,625
625 x 625 = 390625
1 x 625, 5 x 125, 25 x 25, 125 x 5, 625 x 1 = 625