"The equals sign with the squiggly line above it is the sign for congruence."
Therefore, GHIJ is congruent to PQRO.
H is then known as 99°;
J as 85°;
R as 123°;
P as 53°;
and all of the sides' km as listed.
If I'm understanding the question correctly, it is asking you for the appropriate degree of J, which we see as 85°.
Hope this helped!