1 You can only upload photos smaller than 5 MB. 2  You can only upload videos smaller than 600MB.  You can only upload a photo (png, jpg, jpeg) or a video (3gp, 3gpp, mp4, mov, avi, mpg, mpeg, rm).
The price to exchange one U.S. dollar for one unit of a foreign currency is called an exchange rate. The exchange rate of the U.S. dollar varies for different foreign currencies, which fluctuate daily based on a number of factors.
Definition. Rate at which one currency may be converted into another. The exchange rate is used when simply converting one currency to another (such as for the purposes of travel to another country), or for engaging in speculation or trading in the foreign exchange market.here are a wide variety of factors which influence the exchange rate, such as interest rates, inflation, and the state of politics and the economy in each country. also called rate of exchange or foreign exchange rate or currency exchange rate.