You need to add up all the sides of the thing thank you
The answer is y=0
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Line 1 is in q1 and line 2 is q4
25
If 15 is 60% of a number, it is 3/5 of the whole. Since 5 goes into 25 5 times, and 5 goes into 15 3 times, 15 is the 3/5 of 25.
The answer would be 120 degrees