Answer :
27 feet. first u subtract 227.40-45.15 then u get 182.25 then divide that by 6.75 and get 27 feet.
to find the cost of the pipe you take $45.15 away from $227.40. This gives you $182.25. Let x equal the number of feet of pipe bought and form an equation using x:
6.75x=182.25
x=182.25/6.75
x=27 feet
6.75x=182.25
x=182.25/6.75
x=27 feet