Which shows the expression rewritten with the least common denominator?

7x-2/4x^2 and x-1/8x

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

no because mercury has a density of 13.6 grams per centimeter squared while gold has 19.32 grams centimeter squared

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what am i trying to find out. you didn't put up the whole question.

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i'm pretty sure the answer is a. decreases with increase in