Using the angle relationships, determine the value of y in the diagram above.

y=15
y=30
y=45
y=90
on the graph there is numbers 120,2x+10, and 2y+30
on the graph is the letters m and n
a line and vertical line

Unfortunately, without the diagram or a clearer description, it is not possible to determine the value of y or its relationship to the other elements on the graph. Could you please provide more specific information or a diagram to assist with solving the problem?