Answer:a
Explanation:
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Answer:
x + y + z = 41.5
(5x)° = 100°
x = 20
(4y + 10)° + 100° = 180° ⇒ y = = 17.5
(4z² + 16)° + 100° = 180° ⇒ z = 4
x + y + z = 20 + 17.5 + 4 = 41.5
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