First find the slope with the equation y/x
80/50=8/5 (you want this in fraction form)
the y-intercept is zero (so place a dot at the origin)
next, go up 8 values and then 5 to the right (5,8), continue to do this process until you have enough points to graph a line. (10,16), (15,24), (20,32)
Hope this helps!
i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2