The value of y is equal to 112 degrees.
We know that the sum of all angles in a quadrilateral equals 360 degrees.
Also, the sum of the angles of one side of a parallelogram is 180 degrees.
We can calculate y using this statement.
68 + y = 180
y = 180 - 68
y = 112
Since y is 112, angle LMN will also be equal to 112 as it is opposite y.
Now we can verify this by using the property of the sum of all angles in a quadrilateral being 360 degrees.
68 + 112 + 68 + 112
= 180 + 180
= 360
Therefore the value of angle y is 112 degrees.