B because first you do the two triangles which =3 then you get the area for the square in the middle which is 15 then you add them up to get 18
Check the picture below.
you can pretty much count those lengths off the grid.
recall that A = 1/2 bh.
Answer:

Step-by-step explanation:
when you raise an exponent to a power you multiply
Also since the terms inside the parenthesis are multiplied and not added, you don't have to worry about expanding it

To find the answer, you need to divide 90.5 by 4. The answer to that is 22.625, and if you want to check the answer, 22.625 x 4 = 90.5. Hope this helps :)
Take the root of both sides, and solve.
x = 2i sqrt 2, -2i sqrt 2.