In the expression
12a + b - 7
which
is the constant?

Step-by-step explanation:

in the expression 12a+b-7

the constant is 7

the rest are variables

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

do have an equation or graph or

step-by-step explanation: