Enrico installs a drain pipe that runs a horizontal distance of 172inches and drops 6 inches from the horizontal. Is the slope of this pipe acceptable? Explain.

Am hella confused right now!

Ok so the rise is the 6 and 172 is your run which this is how to find the slope using the fraction / equation rise / run which gives you the answer of 28.666666 and on and on which is not an acceptable slope I believe the question is a little confusing