At a store, 20 feet of fencing cost $36. at that rate, how much will 15 feet of fencing cost?

If 20 feet cost $36 then you can divide 36 by 20 to see how much one foot would cost. The answer is $1.80. Then multiply $1.80 x 15 feet and you get $27

Given information

20 feet cost $36


Find the cost of 1 foot by dividing by 20

20 feet = $36
1 foot = $36 ÷ 20
1 foot = $1.8


Find the cost of 15 feet by multiplying by 15

1 foot = $1.80
15 feet = $1.80 x 15
15 feet = $27


$27