Answer:
B. 60
Explanation:
The opposite sides of a parallelogram are parallel and congruent.
This implies that:
|UV|=|XW|
From the diagram; |UV|=15
and
![|XW|=(1)/(4)y](https://img.qammunity.org/2020/formulas/mathematics/high-school/r8mbgprqqy6l5x7qegdeonzupqml8ijxwg.png)
We equate the two side lengths to get:
![15=(1)/(4)y](https://img.qammunity.org/2020/formulas/mathematics/high-school/67thb5b4s3gti6qhn0q7q7p3gz6159nj1v.png)
We multiply both sides by 4 to obtain:
![4* 15=4* (1)/(4)y](https://img.qammunity.org/2020/formulas/mathematics/high-school/fnn8ucx7muzb1aq01xecx9eqmi60tw36zv.png)
This implies that:
y=60