Question 1144802
<br>
x = width
5x = length<br>
area = length times width = x(5x) = 5x^2 = 80<br>
The perimeter is (length plus width) times 2 = (5x+x)(2) = 12x<br>
Solve<br>
{{{5x^2=80}}}<br>
to find x.<br>
Then the perimeter is 12x.