On your wedding day, you leave for the church 33 minmin before the ceremony is to begin. The church is 17 milesmiles away. On the way, you have to make an unanticipated stop for construction work. As a result, your average speed for the first 23 minmin is only 7.8 mph. What average speed in miles per hour do you need for the rest of the trip to get to the church in time? Keep two digits after the decimal point.