Which of the following is a direct exchange? Group of answer choices purchasing a soda from a vending machine bidding on a painting at an auction trading your bicycle for an iPhone buying groceries in a supermarket bidding on an antique radio on eBayWhich of the following statements are true with relation to the U.S. dollar in international trade? Group of answer choices Through the IMF, it is backed by set amounts of the U.S. gold reserves when traded internationally. As fiat money, it travels well. It always has a fixed value in relation to other currencies. Between 1934 and 1971 it was supported by gold at the rate of 1/35th of an ounce. It is used as the currency for all international trade for all countries