Answer:
If my calculations are correct.
Step-by-step explanation:
Read https://www.wyzant.com/resources/answers/2997/how_do_you_figure_out_how_to_determine_the_best_method... and I think that will answer your question (:
Answer:
2 1/5 feet. You have to change from inches to feet.
6*40= 240 + 6*2=12
240+12= 252