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Answer:
i think the first one and thrid
Step-by-step explanation:
Answer:
x = 8, y = 
Step-by-step explanation:

Both 8 and x sides are congruent so they're equal.
Add 64 + 64.
Square root 128

Final answers: x = 8, y = 
Max would have had to have gotten 34 out of 40 questions correct. Here's why: