Which of the following statements about the figure above must be true? Select one: A. m∠a + m∠c = 180°
B. m∠c + m∠g = 360°
C. m∠f − m∠e = 0
D. m∠a = m∠g

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In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?