A football team loses 3 yards and then loses 4 yards. how many yards did they lose

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

you can use a^2+ b^2=c^2