Answer:
The answer is 6z-28
Step-by-step explanation:
20 - 3[4(z+1) - 6(z-2)]
= 20 - 3(4z+4-6z+12)
= 20 - 3(16 - 2z)
= 20 - 48 + 6z
= 6z - 28
A: 55
b: 50
c: 100
the sum of all the angles of a triangle must equal 180
Answer:
im not learning this yet so i dont know srry
