Here is a picture of a cube, and the net of this cube. what is the surface area of this cube?

864 mm^2

Step-by-step explanation:

The surface area is found by adding up the area

We have 6 squares of area  12*12

SA = 6 * 12^2

     = 6 * 144

     =864 mm^2

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