Answer:
768 square inches is the correct answer to this problem
Explanation:
First we calculate the large rectangle, (75 by 8 in). 75 x 8 = 600
Next we calculate the small square, (12 by 12 in). 12 x 12 = 144
Then we calculate the triangle, (12 by 4 in). [12 x 4]/2 = 24
When you add them all together you get 768 square inches.