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As there is only one negative sign, our answer will also only have one negative sign, and the answer will be negative. As you can see, A and B are both positive, so they are not the answer.

C reverses our original number, so it is not equivalent.

D just moves the negative sign, which will allow our fraction to stay the same. Therefore, our answer is .

I hope this helps!

the answer is 288..

hope this

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm