Answer:
2.2y+1.2z
Step-by-step explanation:
Add y + 1.2y
Now you can't simplify anymore so this is your answer
-4
1 + 3 = 4
4 - 8 = -4
12222
The missing justification is for the statement that three angles add to a particular angle. The appropriate choice is ...
... c. Angle Addition Postulate
0.06 I hope that helped