Sal was tired of waiting for Amir to show up at their meeting place, so he started running at an average speed of 4.5 mph withou
t him. Ten minutes later, Amir still had 0.25 of a mile to go before he reached the meeting place, but Sal was 0.75 of a mile beyond it. If Amir is running at a faster pace, 6.7 mph, to the nearest hundredth of an hour, after how much time will Amir catch up to Sal? 0.04 hours
0.09 hours
0.23 hours
0.45 hours
