Although the presentation of the problem is poor, with the chosen title of "parallelograms" for the post, it is clear that angles OHE and HER are adjacent angles in a parallelogram.
Then, since adjacent angles in a parallelogram are supplementary...
4q+2q = 180
6q = 180
q = 30
ANSWERS:
a) q = 30
b) OHE = 4q = 120
c) HER = 2q = 60