Answer:
21°
Step-by-step explanation:
Since these are both equivalent right triangles, ∡RQY and ∡PQY are the same. So set them equal to each other.
16x-27=5x+6
x=3
Next plug x into ∡RQY
16(3)-27=21°
Not sure if the 2 at the end is part of it all because with it the GCF can only be 1
but,
the GCF of 24a, 3b and 36ab is 3.