Answer:
A) 9
Explanation:
Both rectangles are the same, just in different sizes. We have to figure out how much bigger rectangle ABCD is than rectangle EFGH.
Side BC compares to side FG, and side BC measures to 22 while side FG measures to 11. 22 is twice as much as 11, so rectangle ABCD is twice as big as rectangle EFGH, which means that the measurements will be twice as big.
So, to find x, we have to divide side CD (which compares to side GH, where the x is) by 2.
18 / 2 = 9
Therefore, side GH (and x) is equal to 9, which means A) is our answer.