A city is considering building a commuter train. The steepest section of track has a fall of 72.8 feet for a horizontal distance of 280 feet. What is the grade of this section of track?

The downgrade of this section of track as a reduced fraction is?
Converted the fraction to a percent.

2 answers

72.8/280 = 13/50 = 0.26

pretty steep, since a 6% grade on a highway is considered a steep hill.
What is the value of the rational expression below when x is equal to 4? (x+20/x+4)