Answer:
$1200
Step-by-step explanation:
Cost of the chain link = $40 per foot
Dog pen is 12 feet long and 3 feet wide
The perimeter or the dog pen can be calculated by adding all 4 side 12 + 3 + 12+ 3 = 30 foot
Or the perimeter can be calculated by mathematical formula = 2(L+B)
=2(12+ 3)
=30 foot
Total cost = Cost per feet x Total Length(Perimeter) = 40x30 = $1200 (That's expensive)
