Answer:
Step-by-step explanation:
y+30+2y=180
Add like terms
3y+30=180
Subtract 30 on both sides
3y=150
Divide by 3 on both sides
y=50
Now all you have to do i calculate the angles.
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just take a picture and it will show you the answers
Median = 15.5
Please take a look at the image attached for an explanation.