Answer:
![(y)/(34)](https://img.qammunity.org/2022/formulas/mathematics/high-school/mnux6rl4948sdt1zjgtp86ck0asvon0zla.png)
Explanation:
Cosine is the adjacent side of the triangle divided by the hypotenuse.
The numerator is going to be the side adjacent to the angle 53
So the top number is y.
The hypotenuse is the side opposite of the right angle. So the bottom number is 34