Can someone explain to me those questions with their steps

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

Find the measure for the angle indicated in bold

3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)