Mexico and Quartzite. The spot rate for Mexican pesos is Ps12.46/$. If the U.S.-based company Quartzite Inc. buys Ps549,000 spot from its bank on Thursday, how much must Quartzite pay and on what date? How much must Quartzite pay? The cost in US$ is $(Round to the nearest cent.) Golden Ounce. Under the gold standard, the price of an ounce of gold in U.S. dollars was $20.65, while the price of that same ounce in British pounds was 3.7524. What would be the exchange rate between the dollar and the pound if the U.S. dollar price had been $41.78 per ounce of gold? The implied S/ exchange rate if the U.S. dollar price is $20.65/oz of gold is $ (Round to four decimal places)