The marginal total 4,293 is the total number of male students in the 25-34 age group the total number of female students in the 25-34 age group the total number of students in the 25-34 age group the total number of female students . the relative frequency of females in the 35-plus age group compared with the total number of students, expressed as a percentage, is 66.5% 56.3% 33.5% 10.9% .

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.