32 degees, 43.8 degrees, 53.8, 63.8 Yes they are proportional
Answer:
Step-by-step explanation:
It’s 5
Answer:
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Step-by-step explanation:
Since they are vertical angles, they equal each other. Therefor the equation would be: 30x-29 = 20x+21
10x = 50
X = 5
After, you plug whatever x is back into the other equations.
20(5)+21 = 121 and 30(5)-29 = 121