Question 384638
width = w
length = 2w-3

...
2*(l+w)=perimeter
2*(w+2w-3)=42
2*(3w-3)=42
6w-6=42
+6    +6
6w=42+6
6w=48
6w/6=48/6

w=8 the width.
..
length = 2w-3
length = 2*8-3
16-3
=13
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length =13feet, width =8feet
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