Suppose m:angle a = 77 degrees what is the measure of a complement of a complement of angle a

Two Angles are Complementary when they add up to 90 degrees (a Right Angle). They don't have to be next to each other, just so long as the total is 90 degrees.

So measure of angle complentaary to angle a is

X = 90 - 77

X = 13 degrees