Find the cosine of ∠I. Write your answer in simplified, rationalized form. Do not round.
cos (I) =

$32,660

step-by-step explanation:

it would be 6xy and -16xy.

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