Respuesta :

hdizz
Is it asking in miles??? It is oddly phrased but Maybe 150? 
If 1 inch is 20 miles then 7.5*20=150
So from Chicago to Peoria would be 150 miles or 7.5 inches on the map.
Sorry If i'm wrong but that is what it sounds like it is asking 
moniquepotter8
150 miles.  Hope this helps.