Answer:
The answer is 126 feet.
Step-by-step explanation:
In order to determine the feet, first we have to determine the length of the pool and then we have to transform units from yd to feet.
We know the perimeter and there is a formula that relation the perimeter with the width and length.
Let:
W=width of the pool
L=Length of the pool
P=Perimeter of the pool
\(P=2*W+2*L\\2*L=P-2*W\\L=\frac{P-2*W}{2} \\\\L=\frac{124-2*20}{2}\\L=42\)
Then, we have to transform units from yd to feet.
\(3 feet= 1 yd\)
So, 42yd=126 feet
