The right answer is -2585
,12x12=144.................
3y = -9x + 12
y = -3x + 4
Is this what you are looking for?
The perimeter of the large square is 24 and the area is 36 units
the perimeter of the small squares are 4 and the areas are 1 unit.
All together the perimeter is 29 and the area is 38.
