The Bornean orangutan is listed as Endangered and numbers approximately 41,000, while the Sumatran orangutan is considered Critically Endangered with an estimated population of 7,500. A century ago, more than 230,000 orangutans likely roamed in the wild.
Making the world better, one answer at a time. If you go to the United States Postal Service web-stie, you will find that one US First class stamp ($0.42) will cover the cost to mail a letter that weighs up to 1 ounce, about 28.35 grams. Thus, the average weight of a letter is one ounce or less. If you go to the United States Postal Service web-stie, you will find that one US First class stamp ($0.42) will cover the cost to mail a letter that weighs up to 1 ounce, about 28.35 grams.  Minor edit?
Next. I'm assembling my wedding invitations today (Sunday) and I need to know how much postage will cost for a 1.3 ounce letter. The dimensions are 5 1/4 in. by 9 inches.Update: I forgot to add that the standard weight for the 44 cent stamps is 1 ounce.'m assembling my wedding invitations today (Sunday) and I need to know how much postage will cost for a 1.3 ounce letter.