\begin{cases} -3x+3y=9 2x-7y=-14 \end{cases}
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−3x+3y=9
2x−7y=−14

step-by-step explanation:

one that is bigger than 3 1/2

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

the correct answer is $7.38

step-by-step explanation: