If you use a m/n = n radical a to the power of m you get radical (the check mark looking symbol) (1+x)^3 - (1+x) ^1/2 Then that gets converted to our final answer (1+x) radical 1+x - radical 1+x Hope that made sense! :)
1 feet is 12 inches so 40 feets is 480 inches Real locomotive is 480/16=30 times wider then the model And then a window on the real locomotive is 30 times wider then the model.
