Use the following information for problems 15-17. In 2007, when Oscar and Maria retired from their jobs at German engineering firms, they purchased a vacation condo in Miami for $500,000. The exchange rate at the time of purchase was 0.63 per $1. The U.S. housing crisis that began in 2008 caused the value of many condos in Miami to fall significantly. In 2012, Oscar and Maria sold their condo for $400,000. The exchange rate as of the date of sale was 0.82 per $1. 15. How much did Oscar and Maria pay for their condo in euros? 16. How many euros did Oscar and Maria receive for the sale of their condo? 17. Overall, how many euros did Oscar and Maria make or lose on this transaction?