Let's consider what the question asks for:
--> the length of 'y'
To solve:
--> we need to use trigonometry
--> let's determine which function to use based on the image given
below
--> (look at image attached)
Let's use angle with measure of 53:
--> the side with length of 'y' is adjacent to it

Thus the length of that particular side is about:
--> 6.0
Answer: 6.0