Area of a square = side^2
In this problem,
Side = 4in
Therefore,
Area = 4^2 = 16in^2
Area of a rectangle = length * width
In this problem,
Length = 6in
Width = 12.5in
Area = 75in^2
Area of a parallelogram = base * height
In this problem
Base = 10in
Height = 3.5in
Area = 3.5 * 10 = 35in^2
Now we add up the area from each shape
35 + 75 + 16 = 126in^2