On August 16th 2009, Jamaican sprinter Usain Bolt shattered the world record in the 100 meters with a time of 9.58 seconds. He broke the record at the World Championships in Berlin, Germany.

1. Describe how you might go about converting this speed (100 meters in 9.58 s) to its equivalent in miles per hour.
2. Without doing the actual math, how fast do you think this would be in miles per hour?