I need help with a conversion or dimensional ysis problem. Here it is: Carl Lewis, a sprinter, in the 1988?

Olympics Games, ran the 100 meter dash in 9.92 seconds. What was his speed in feet per second? I need help setting up the units and writing out the equation. I know there are many different ways of setting this up but please show me how you would do it and thank you so much for your help!