Can someone pls help me I’m not good at math and I don’t pay attention

I’ll gIVE BRAINLIEST

yo answer should be 6 if im not mistaken

step-by-step explanation:

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 one below it is a function