Assume that General Electric is trying to decide whether to locate a new production facility in the United States or in Israel. In order to help make its decision, the company wants to compare labor costs in the two countries. The average hourly wage in the United States is approximately $ 18 per hour. The U.S. exchange rate with Israel is 3.40 shekel per dollar. Convert the average U.S. hourly wage into units of shekel per hour.