I wanna say standard but I’m sure. Sorry if I’m wrong I’m in precal now. Not algebra
ANSWER

EXPLANATION
From the mnemonics SOH-CAH-TOA.
We want to find the cosine of y
CAH means cosine ratio involves adjacent over the hypotenuse.

From the right by triangle, the side ajacent to angle y is 64 units and the hypotenuse is 80 units.


Answer:
The answer is A.
Step-by-step explanation:
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