School to Home

Coming home from school takes 20 minuts on the Toll Way... and we travel at a speed of 60 miles per hour.

D                                                E                                             S                                            A    
X=60                                      V=X/T                                  V=60/20                                  V=30
T=20                                           
V=?




I could not upload a photo but I used Google Maps to support my answer...