Question 743309
l=w+4
P=2(l+w)=28

or l+w=14 and so l=14-w

which leads us to

w+4=14-w

w+w+4-4=14-4-w+w

2w=10

and w=5

therefore l=5+4=9

and that means A=lw=(9)(5)=45 square yards




:)