Answer:
Length: 24 feet
Width: 8 feet
Explanation:
ok so first let the width be x. so if the width is x then the length would be 2x+8. If the perimeter is 64 you would divide it by two because it goes all the way around the rectangle. so then you have 32=(2x+8)+x. then we solve for x.
32=(2x+8)+x
32=3x+8
-8 -8
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24=3x
8=x
now you have x=8 so that is the width. then you have the length so then you fill x in 2*8+8 is the length and your length would be 24.