16.22 divided by 2 = your answer. (8.11)
The answer would be -15
this is my work
3*-6 to -18 (7-4-18)
The best way to do this is to make up values for the sides.
Say the lengths of square B's sides are each 4 cm. That means A's sides are 2 cm.
So, the area of square B is 4^2 = 16 cm^2, and A's area is 4 cm^2. We can see the shaded area is half of A, so it's 2 cm^2.
What percent of 16 is 2?
2 / 16 * 100 = 12.5%
Blue 9 x 3 = 27
red 3 x 3 = 9
27 + 9 = 36
I hope this helps
