Please help. I will give brainliest to best answer

1)

domain: (negative infinaty, 4)

range: (-4, infinaty)

I don't know the second one, I'm sorry.

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