You Are Driving on a Road That Has a 5 $$\frac { 5 } { 100 }$$

You are driving on a road that has a 5% uphill grade.This means that the slope of the road is $$\frac { 5 } { 100 }$$ .Approximate the amount of vertical change in your position if you drive 400 feet. ?

A) 18 ft
B) 21 ft
C) 22 ft
D) 19 ft
E) 20 ft