Answer:
The expression for the number of laps that Ian ran is [tex]x=17-f[/tex]
Step-by-step explanation:
Number of laps run by Matt = 17
Let the number of laps run by Ian be x
As given Ian ran 'f' fewer laps than Matt.
So, we can express this as :
[tex]x=17-f[/tex]
So, the expression for the number of laps that Ian ran is = [tex]x=17-f[/tex]