Determine the slope and y-intercept.
y
-3
0
-2
3
6
12

you probably already have the answer but anyways it's b. 15.0

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