Determine the greatest common factor of 28xy9z and 32x2y2z

4xy^2z

assuming those numbers after the first ones are exponents

a is the right answer

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