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babymother [125]

3 years ago

7

May I please get help with this. Thank you so much

1 answer:

Goryan [66]3 years ago

8 0

Answer: 131 degrees

Step-by-step explanation:

20y-11+4y+6+7y-7=360

31y-12=360

+12. +12

31y= 372

Divide by 31

Y= 12

BC= 4y+6+7y-7

4(12)+6+7(12)-7

BC= 131

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