Answer:
1 A
2 C
Step-by-step explanation:
Answer:

Step-by-step explanation:
<u>Step 1: Substitute -3x for x</u>
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Answer: 
Answer:
90º
Step-by-step explanation:
A triangle = 180º.
m<Z = 90º
So m<x + m<y = 180 - 90
That equals 90º
<em>Hope that helps!</em>