Decide when to hire another dog walker based on the equation and median time. Equation is x - y (x=89, y= 10). The median time is 30.5 minutes. There are currently 2 dog walkers and each can do 7 hours. Give a reason why to hire another dog walker. (Median time got by adding 40+50+30+40+15+25+15+20+30+40 = 305 then divding 305 and 10 to equal 30.5) (50 points for the right answer)