7ab+6b^2-2a^3
how do i do this me

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

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