Find the constant of proportionality in the equation below. Y=150x

k = 150

Step-by-step explanation:

y = 150x has the form y = kx; k is the constant of proportionality.  In this case, that constant is k = 150.

6 on both sides and twelve on the top and the bottom

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