Dude please give me brainliest please :)
Also here’s the answer
Factorizing an expression involves writing the expression in simpler forms
The values of z are
or 
The equation is given as:

Expand the equation

Factorize the expression:

Factor out z - 4

Split
or 
Solve for z
or 
Hence, the values of z are
or 
Read more about factorization at:
brainly.com/question/11579257
Answer:
3 is the answer
Step-by-step explanation:
5.........4............3..............2...............1
so 3 follows 4
The interior of a triangle = 180°
So 180° - 85° -50° = 45°
c. 45 degrees