Answer:
142 unit²
Step-by-step explanation:
Break this up into 3 rectangles. Looking left to right, you'll have a rectangle with dimensions of 9x6, next is a rectangle with dimensions of 12x6, then a square with sides 4x4.
The total area is
9x6 + 12x6 + 4x4
54 + 72 + 16
142 unit²
See attached photo for the 3 rectangles
