Answer:
Part 1) The measure of angle Z is

Part 2) The measure of angle x is

Part 3) The measure of angle y is

Explanation:
we know that
In a inscribed quadrilateral opposite angles are supplementary
so
In this problem
------> equation A
----> equation B
step 1
Find the measure of angle Z
Solve the equation A

solve for z

step 2
Find the measure of angle x
we know that
The inscribed angle is half that of the arc it comprises.
so

step 3
Find the measure of angle y
Solve the equation B

we have

substitute

