Can someone please explain how to do this? Thanks!!

no fki.ng cl.ue

4x and 6y

im not sure though

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