Answer:
31.5
Explanation:
so first find the area of the triangle, which is 9. then divide that by 2 which equals 4.5.
now find the area of the missing square, which is 5×4, and that equals 20. now pretend that the square is whole, and find the area of the whole square. that would be 8×7, which equals 56. so now you need to subtract 4.5 and 20 from 56.
56
24.5
____
31.5