Solve for xx. Round to the nearest tenth of a degree, if necessary

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

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1