
Andrew M. answered 09/14/17
Tutor
New to Wyzant
Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors
Assuming this is a rectangular arena 25 by 20 feet:
Perimeter = 2(length + width)
Perimeter = 2(25 + 20) = 90 feet of fencing needed
Cost: ($4.95/ft)(90 ft) = $________
Just multiply the number of feet needed by the cost per foot.